125979390 has 48 divisors (see below), whose sum is σ = 329067648. Its totient is φ = 33438528.

The previous prime is 125979389. The next prime is 125979419. The reversal of 125979390 is 93979521.

It is a happy number.

125979390 is a `hidden beast` number, since 1 + 259 + 7 + 9 + 390 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16932 + ... + 23208.

It is an arithmetic number, because the mean of its divisors is an integer number (6855576).

Almost surely, 2^125979390 is an apocalyptic number.

125979390 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 125979390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164533824).

125979390 is an abundant number, since it is smaller than the sum of its proper divisors (203088258).

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

125979390 is a wasteful number, since it uses less digits than its factorization.

125979390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6513 (or 6510 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 125979390 is about 11224.0540804114. The cubic root of 125979390 is about 501.3024575958.

The spelling of 125979390 in words is "one hundred twenty-five million, nine hundred seventy-nine thousand, three hundred ninety".