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115142 = 257571
BaseRepresentation
bin11100000111000110
312211221112
4130013012
512141032
62245022
7656456
oct340706
9184845
10115142
1179565
1256772
1340541
142dd66
15241b2
hex1c1c6

115142 has 4 divisors (see below), whose sum is σ = 172716. Its totient is φ = 57570.

The previous prime is 115133. The next prime is 115151. The reversal of 115142 is 241511.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (115133) and next prime (115151).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28784 + ... + 28787.

It is an arithmetic number, because the mean of its divisors is an integer number (43179).

2115142 is an apocalyptic number.

115142 is a deficient number, since it is larger than the sum of its proper divisors (57574).

115142 is an equidigital number, since it uses as much as digits as its factorization.

115142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57573.

The product of its digits is 40, while the sum is 14.

The square root of 115142 is about 339.3258021430. The cubic root of 115142 is about 48.6494486744.

Adding to 115142 its reverse (241511), we get a palindrome (356653).

The spelling of 115142 in words is "one hundred fifteen thousand, one hundred forty-two".

Divisors: 1 2 57571 115142