125007156 has 72 divisors (see below), whose sum is σ = 334807200. Its totient is φ = 39216960.

The previous prime is 125007131. The next prime is 125007163. The reversal of 125007156 is 651700521.

125007156 is a `hidden beast` number, since 1 + 2 + 500 + 7 + 156 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121926 + ... + 122946.

It is an arithmetic number, because the mean of its divisors is an integer number (4650100).

Almost surely, 2^125007156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125007156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167403600).

125007156 is an abundant number, since it is smaller than the sum of its proper divisors (209800044).

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

125007156 is a wasteful number, since it uses less digits than its factorization.

125007156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229 (or 1224 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 125007156 is about 11180.6599089678. The cubic root of 125007156 is about 500.0095411513.

Adding to 125007156 its reverse (651700521), we get a palindrome (776707677).

The spelling of 125007156 in words is "one hundred twenty-five million, seven thousand, one hundred fifty-six".