125015004 has 18 divisors (see below), whose sum is σ = 316010240. Its totient is φ = 41671656.

The previous prime is 125014999. The next prime is 125015021. The reversal of 125015004 is 400510521.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1736284 + ... + 1736355.

Almost surely, 2^125015004 is an apocalyptic number.

It is an amenable number.

125015004 is an abundant number, since it is smaller than the sum of its proper divisors (190995236).

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

125015004 is a wasteful number, since it uses less digits than its factorization.

125015004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3472649 (or 3472644 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 125015004 is about 11181.0108666435. The cubic root of 125015004 is about 500.0200045330.

Adding to 125015004 its reverse (400510521), we get a palindrome (525525525).

The spelling of 125015004 in words is "one hundred twenty-five million, fifteen thousand, four".