125000000002 has 8 divisors (see below), whose sum is σ = 187514268876. Its totient is φ = 62495243712.

The previous prime is 124999999997. The next prime is 125000000003. The reversal of 125000000002 is 200000000521.

It can be written as a sum of positive squares in 2 ways, for example, as 122303378961 + 2696621041 = 349719^2 + 51929^2 .

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

It is not an unprimeable number, because it can be changed into a prime (125000000003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2345203 + ... + 2397910.

Almost surely, 2^125000000002 is an apocalyptic number.

125000000002 is a deficient number, since it is larger than the sum of its proper divisors (62514268874).

125000000002 is a wasteful number, since it uses less digits than its factorization.

125000000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4756292.

The product of its (nonzero) digits is 20, while the sum is 10.

Adding to 125000000002 its reverse (200000000521), we get a palindrome (325000000523).

The spelling of 125000000002 in words is "one hundred twenty-five billion, two", and thus it is an aban number.