264127961 has 2 divisors, whose sum is σ = 264127962. Its totient is φ = 264127960.

The previous prime is 264127957. The next prime is 264127999. The reversal of 264127961 is 169721462.

It is an a-pointer prime, because the next prime (264127999) can be obtained adding 264127961 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207216025 + 56911936 = 14395^2 + 7544^2 .

It is a cyclic number.

It is not a de Polignac number, because 264127961 - 2² = 264127957 is a prime.

It is not a weakly prime, because it can be changed into another prime (264121961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132063980 + 132063981.

It is an arithmetic number, because the mean of its divisors is an integer number (132063981).

Almost surely, 2^264127961 is an apocalyptic number.

It is an amenable number.

264127961 is a deficient number, since it is larger than the sum of its proper divisors (1).

264127961 is an equidigital number, since it uses as much as digits as its factorization.

264127961 is an evil number, because the sum of its binary digits is even.

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

The square root of 264127961 is about 16252.0140598019. The cubic root of 264127961 is about 641.6104955458.

The spelling of 264127961 in words is "two hundred sixty-four million, one hundred twenty-seven thousand, nine hundred sixty-one".