712442136 has 64 divisors (see below), whose sum is σ = 2048590080. Its totient is φ = 202250880.

The previous prime is 712442111. The next prime is 712442161. The reversal of 712442136 is 631244217.

It is an interprime number because it is at equal distance from previous prime (712442111) and next prime (712442161).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12871 + ... + 39881.

It is an arithmetic number, because the mean of its divisors is an integer number (32009220).

Almost surely, 2^712442136 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 712442136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1024295040).

712442136 is an abundant number, since it is smaller than the sum of its proper divisors (1336147944).

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

712442136 is a wasteful number, since it uses less digits than its factorization.

712442136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27184 (or 27180 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 712442136 is about 26691.6117160429. The cubic root of 712442136 is about 893.1338146291.

The spelling of 712442136 in words is "seven hundred twelve million, four hundred forty-two thousand, one hundred thirty-six".