125402641 has 64 divisors (see below), whose sum is σ = 174988800. Its totient is φ = 87091200.

The previous prime is 125402639. The next prime is 125402681. The reversal of 125402641 is 146204521.

It is a happy number.

It is not a de Polignac number, because 125402641 - 2¹ = 125402639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125402681) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2055751 + ... + 2055811.

It is an arithmetic number, because the mean of its divisors is an integer number (2734200).

Almost surely, 2^125402641 is an apocalyptic number.

It is an amenable number.

125402641 is a deficient number, since it is larger than the sum of its proper divisors (49586159).

125402641 is a wasteful number, since it uses less digits than its factorization.

125402641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 125402641 is about 11198.3320633030. The cubic root of 125402641 is about 500.5362792701.

The spelling of 125402641 in words is "one hundred twenty-five million, four hundred two thousand, six hundred forty-one".