712220351 has 4 divisors (see below), whose sum is σ = 712274304. Its totient is φ = 712166400.

The previous prime is 712220347. The next prime is 712220357. The reversal of 712220351 is 153022217.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 153022217 = 1979 ⋅77323.

It is a cyclic number.

It is not a de Polignac number, because 712220351 - 2² = 712220347 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 (712220357) 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, 7586 + ... + 38496.

It is an arithmetic number, because the mean of its divisors is an integer number (178068576).

Almost surely, 2^712220351 is an apocalyptic number.

712220351 is a deficient number, since it is larger than the sum of its proper divisors (53953).

712220351 is a wasteful number, since it uses less digits than its factorization.

712220351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53952.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 712220351 is about 26687.4568102695. The cubic root of 712220351 is about 893.0411267549.

Adding to 712220351 its reverse (153022217), we get a palindrome (865242568).

The spelling of 712220351 in words is "seven hundred twelve million, two hundred twenty thousand, three hundred fifty-one".