612725318 has 24 divisors (see below), whose sum is σ = 955389528. Its totient is φ = 294652512.

The previous prime is 612725317. The next prime is 612725371. The reversal of 612725318 is 813527216.

It is a happy number.

It is a super-2 number, since 2×612725318² = 750864630636402248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612725317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246530 + ... + 249002.

It is an arithmetic number, because the mean of its divisors is an integer number (39807897).

Almost surely, 2^612725318 is an apocalyptic number.

612725318 is a deficient number, since it is larger than the sum of its proper divisors (342664210).

612725318 is a wasteful number, since it uses less digits than its factorization.

612725318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628 (or 2585 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 612725318 is about 24753.2890339850. The cubic root of 612725318 is about 849.3537500764.

The spelling of 612725318 in words is "six hundred twelve million, seven hundred twenty-five thousand, three hundred eighteen".