712118138 has 8 divisors (see below), whose sum is σ = 1124397120. Its totient is φ = 337319100.

The previous prime is 712118137. The next prime is 712118153. The reversal of 712118138 is 831811217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×712118138² = 1014224484937174088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (712118131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9369938 + ... + 9370013.

It is an arithmetic number, because the mean of its divisors is an integer number (140549640).

Almost surely, 2^712118138 is an apocalyptic number.

712118138 is a deficient number, since it is larger than the sum of its proper divisors (412278982).

712118138 is a wasteful number, since it uses less digits than its factorization.

712118138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18739972.

The product of its digits is 2688, while the sum is 32.

The square root of 712118138 is about 26685.5417408004. The cubic root of 712118138 is about 892.9984036568.

The spelling of 712118138 in words is "seven hundred twelve million, one hundred eighteen thousand, one hundred thirty-eight".