712122127 has 4 divisors (see below), whose sum is σ = 712760776. Its totient is φ = 711483480.

The previous prime is 712122043. The next prime is 712122133. The reversal of 712122127 is 721221217.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 712122127 - 2¹⁵ = 712089359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712122137) 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, 317649 + ... + 319882.

It is an arithmetic number, because the mean of its divisors is an integer number (178190194).

Almost surely, 2^712122127 is an apocalyptic number.

712122127 is a deficient number, since it is larger than the sum of its proper divisors (638649).

712122127 is a wasteful number, since it uses less digits than its factorization.

712122127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638648.

The product of its digits is 784, while the sum is 25.

The square root of 712122127 is about 26685.6164815430. The cubic root of 712122127 is about 893.0000710599. Note that the first 4 decimals are identical.

The spelling of 712122127 in words is "seven hundred twelve million, one hundred twenty-two thousand, one hundred twenty-seven".