223972151 has 12 divisors (see below), whose sum is σ = 243031320. Its totient is φ = 206313120.

The previous prime is 223972123. The next prime is 223972163. The reversal of 223972151 is 151279322.

It is a de Polignac number, because none of the positive numbers 2^k-223972151 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223972351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103541 + ... + 105681.

It is an arithmetic number, because the mean of its divisors is an integer number (20252610).

Almost surely, 2^223972151 is an apocalyptic number.

223972151 is a deficient number, since it is larger than the sum of its proper divisors (19059169).

223972151 is a wasteful number, since it uses less digits than its factorization.

223972151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786 (or 2773 counting only the distinct ones).

The product of its digits is 7560, while the sum is 32.

The square root of 223972151 is about 14965.6991483860. The cubic root of 223972151 is about 607.2926248897.

The spelling of 223972151 in words is "two hundred twenty-three million, nine hundred seventy-two thousand, one hundred fifty-one".