1264572077 has 2 divisors, whose sum is σ = 1264572078. Its totient is φ = 1264572076.

The previous prime is 1264572041. The next prime is 1264572107. The reversal of 1264572077 is 7702754621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1259824036 + 4748041 = 35494^2 + 2179^2 .

It is a cyclic number.

It is not a de Polignac number, because 1264572077 - 2²⁰ = 1263523501 is a prime.

It is a super-4 number, since 4×1264572077⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1264572007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632286038 + 632286039.

It is an arithmetic number, because the mean of its divisors is an integer number (632286039).

Almost surely, 2^1264572077 is an apocalyptic number.

It is an amenable number.

1264572077 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264572077 is an equidigital number, since it uses as much as digits as its factorization.

1264572077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 164640, while the sum is 41.

The square root of 1264572077 is about 35560.8222205280. The cubic root of 1264572077 is about 1081.3871285334.

The spelling of 1264572077 in words is "one billion, two hundred sixty-four million, five hundred seventy-two thousand, seventy-seven".