125640602 has 8 divisors (see below), whose sum is σ = 191550612. Its totient is φ = 61790400.

The previous prime is 125640589. The next prime is 125640617. The reversal of 125640602 is 206046521.

It can be written as a sum of positive squares in 2 ways, for example, as 118570321 + 7070281 = 10889^2 + 2659^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514799 + ... + 515042.

Almost surely, 2^125640602 is an apocalyptic number.

125640602 is a deficient number, since it is larger than the sum of its proper divisors (65910010).

125640602 is a wasteful number, since it uses less digits than its factorization.

125640602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029904.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 125640602 is about 11208.9518689305. The cubic root of 125640602 is about 500.8526810435.

The spelling of 125640602 in words is "one hundred twenty-five million, six hundred forty thousand, six hundred two".