125662140 has 72 divisors (see below), whose sum is σ = 386043840. Its totient is φ = 33081984.

The previous prime is 125662139. The next prime is 125662151. The reversal of 125662140 is 41266521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9802 + ... + 18638.

It is an arithmetic number, because the mean of its divisors is an integer number (5361720).

Almost surely, 2^125662140 is an apocalyptic number.

125662140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125662140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193021920).

125662140 is an abundant number, since it is smaller than the sum of its proper divisors (260381700).

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

125662140 is a wasteful number, since it uses less digits than its factorization.

125662140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8931 (or 8926 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 125662140 is about 11209.9125777144. The cubic root of 125662140 is about 500.8812990447.

It can be divided in two parts, 12566 and 2140, that added together give a triangular number (14706 = T₁₇₁).

The spelling of 125662140 in words is "one hundred twenty-five million, six hundred sixty-two thousand, one hundred forty".