222752961 has 6 divisors (see below), whose sum is σ = 321754290. Its totient is φ = 148501968.

The previous prime is 222752947. The next prime is 222752969. The reversal of 222752961 is 169257222.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 222576561 + 176400 = 14919^2 + 420^2 .

It is not a de Polignac number, because 222752961 - 2¹⁵ = 222720193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222752969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12375156 + ... + 12375173.

It is an arithmetic number, because the mean of its divisors is an integer number (53625715).

Almost surely, 2^222752961 is an apocalyptic number.

It is an amenable number.

222752961 is a deficient number, since it is larger than the sum of its proper divisors (99001329).

222752961 is a wasteful number, since it uses less digits than its factorization.

222752961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24750335 (or 24750332 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 222752961 is about 14924.9107535020. The cubic root of 222752961 is about 606.1886890773.

The spelling of 222752961 in words is "two hundred twenty-two million, seven hundred fifty-two thousand, nine hundred sixty-one".