125649602 has 8 divisors (see below), whose sum is σ = 202972476. Its totient is φ = 57992112.

The previous prime is 125649583. The next prime is 125649617. The reversal of 125649602 is 206946521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 125641681 + 7921 = 11209^2 + 89^2 .

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, 2416313 + ... + 2416364.

Almost surely, 2^125649602 is an apocalyptic number.

125649602 is a deficient number, since it is larger than the sum of its proper divisors (77322874).

125649602 is a wasteful number, since it uses less digits than its factorization.

125649602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4832692.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 125649602 is about 11209.3533265751. The cubic root of 125649602 is about 500.8646399337.

The spelling of 125649602 in words is "one hundred twenty-five million, six hundred forty-nine thousand, six hundred two".