652172113 has 4 divisors (see below), whose sum is σ = 655942068. Its totient is φ = 648402160.

The previous prime is 652172083. The next prime is 652172119. The reversal of 652172113 is 311271256.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 443860624 + 208311489 = 21068^2 + 14433^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-652172113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (652172119) 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, 1884718 + ... + 1885063.

It is an arithmetic number, because the mean of its divisors is an integer number (163985517).

Almost surely, 2^652172113 is an apocalyptic number.

It is an amenable number.

652172113 is a deficient number, since it is larger than the sum of its proper divisors (3769955).

652172113 is a wasteful number, since it uses less digits than its factorization.

652172113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3769954.

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

The square root of 652172113 is about 25537.6606798665. The cubic root of 652172113 is about 867.2029398109.

The spelling of 652172113 in words is "six hundred fifty-two million, one hundred seventy-two thousand, one hundred thirteen".