722156113 has 4 divisors (see below), whose sum is σ = 825321280. Its totient is φ = 618990948.

The previous prime is 722156089. The next prime is 722156117. The reversal of 722156113 is 311651227.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 722156113 - 2²⁹ = 185285201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (722156117) 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, 51582573 + ... + 51582586.

It is an arithmetic number, because the mean of its divisors is an integer number (206330320).

Almost surely, 2^722156113 is an apocalyptic number.

It is an amenable number.

722156113 is a deficient number, since it is larger than the sum of its proper divisors (103165167).

722156113 is a wasteful number, since it uses less digits than its factorization.

722156113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103165166.

The product of its digits is 2520, while the sum is 28.

The square root of 722156113 is about 26872.9624902057. The cubic root of 722156113 is about 897.1747257947.

The spelling of 722156113 in words is "seven hundred twenty-two million, one hundred fifty-six thousand, one hundred thirteen".