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125130 = 2354397
BaseRepresentation
bin11110100011001010
320100122110
4132203022
513001010
62403150
71030545
oct364312
9210573
10125130
1186015
12604b6
1344c55
143385c
1527120
hex1e8ca

125130 has 32 divisors (see below), whose sum is σ = 310464. Its totient is φ = 32256.

The previous prime is 125119. The next prime is 125131. The reversal of 125130 is 31521.

It is not an unprimeable number, because it can be changed into a prime (125131) by changing a digit.

125130 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1242 + ... + 1338.

It is an arithmetic number, because the mean of its divisors is an integer number (9702).

2125130 is an apocalyptic number.

125130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 125130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155232).

125130 is an abundant number, since it is smaller than the sum of its proper divisors (185334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125130 is a wasteful number, since it uses less digits than its factorization.

125130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 125130 is about 353.7371905808. The cubic root of 125130 is about 50.0173273279.

Adding to 125130 its reverse (31521), we get a palindrome (156651).

The spelling of 125130 in words is "one hundred twenty-five thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 43 86 97 129 194 215 258 291 430 485 582 645 970 1290 1455 2910 4171 8342 12513 20855 25026 41710 62565 125130