125002400 has 36 divisors (see below), whose sum is σ = 305164062. Its totient is φ = 50000640.

The previous prime is 125002393. The next prime is 125002439. The reversal of 125002400 is 4200521.

It can be written as a sum of positive squares in 3 ways, for example, as 46076944 + 78925456 = 6788^2 + 8884^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77327 + ... + 78926.

Almost surely, 2^125002400 is an apocalyptic number.

125002400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125002400 is an abundant number, since it is smaller than the sum of its proper divisors (180161662).

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

125002400 is a wasteful number, since it uses less digits than its factorization.

125002400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156273 (or 156260 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 125002400 is about 11180.4472182467. The cubic root of 125002400 is about 500.0031999795.

Adding to 125002400 its reverse (4200521), we get a palindrome (129202921).

The spelling of 125002400 in words is "one hundred twenty-five million, two thousand, four hundred".