272294921 has 2 divisors, whose sum is σ = 272294922. Its totient is φ = 272294920.

The previous prime is 272294887. The next prime is 272294927. The reversal of 272294921 is 129492272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146047225 + 126247696 = 12085^2 + 11236^2 .

It is a cyclic number.

It is not a de Polignac number, because 272294921 - 2²⁶ = 205186057 is a prime.

It is equal to p_14829383 and since 272294921 and 14829383 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (272294927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136147460 + 136147461.

It is an arithmetic number, because the mean of its divisors is an integer number (136147461).

Almost surely, 2^272294921 is an apocalyptic number.

It is an amenable number.

272294921 is a deficient number, since it is larger than the sum of its proper divisors (1).

272294921 is an equidigital number, since it uses as much as digits as its factorization.

272294921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 272294921 is about 16501.3611862779. The cubic root of 272294921 is about 648.1564495805.

The spelling of 272294921 in words is "two hundred seventy-two million, two hundred ninety-four thousand, nine hundred twenty-one".