125155004 has 24 divisors (see below), whose sum is σ = 238528080. Its totient is φ = 57112704.

The previous prime is 125154943. The next prime is 125155007. The reversal of 125155004 is 400551521.

Added to its reverse (400551521) it gives a triangular number (525706525 = T₃₂₄₂₅).

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125155007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8894 + ... + 18149.

It is an arithmetic number, because the mean of its divisors is an integer number (9938670).

Almost surely, 2^125155004 is an apocalyptic number.

It is an amenable number.

125155004 is a deficient number, since it is larger than the sum of its proper divisors (113373076).

125155004 is a wasteful number, since it uses less digits than its factorization.

125155004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27149 (or 27147 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 125155004 is about 11187.2697294738. The cubic root of 125155004 is about 500.2065866322.

Adding to 125155004 its reverse (400551521), we get a triangular number (525706525 = T₃₂₄₂₅).

The spelling of 125155004 in words is "one hundred twenty-five million, one hundred fifty-five thousand, four".