725379136 has 14 divisors (see below), whose sum is σ = 1439424350. Its totient is φ = 362689536.

The previous prime is 725379133. The next prime is 725379143. The reversal of 725379136 is 631973527.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 525326400 + 200052736 = 22920^2 + 14144^2 .

It is a super-3 number, since 3×725379136³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 725379092 and 725379101.

It is not an unprimeable number, because it can be changed into a prime (725379133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5666961 + ... + 5667088.

It is an arithmetic number, because the mean of its divisors is an integer number (102816025).

Almost surely, 2^725379136 is an apocalyptic number.

It is an amenable number.

725379136 is a deficient number, since it is larger than the sum of its proper divisors (714045214).

725379136 is a wasteful number, since it uses less digits than its factorization.

725379136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11334061 (or 11334051 counting only the distinct ones).

The product of its digits is 238140, while the sum is 43.

The square root of 725379136 is about 26932.8634942518. The cubic root of 725379136 is about 898.5074586790.

The spelling of 725379136 in words is "seven hundred twenty-five million, three hundred seventy-nine thousand, one hundred thirty-six".