1264510901 has 2 divisors, whose sum is σ = 1264510902. Its totient is φ = 1264510900.

The previous prime is 1264510883. The next prime is 1264510903. The reversal of 1264510901 is 1090154621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1237210276 + 27300625 = 35174^2 + 5225^2 .

It is a cyclic number.

It is not a de Polignac number, because 1264510901 - 2⁶ = 1264510837 is a prime.

Together with 1264510903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1264510903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632255450 + 632255451.

It is an arithmetic number, because the mean of its divisors is an integer number (632255451).

Almost surely, 2^1264510901 is an apocalyptic number.

It is an amenable number.

1264510901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264510901 is an equidigital number, since it uses as much as digits as its factorization.

1264510901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 1264510901 is about 35559.9620500360. The cubic root of 1264510901 is about 1081.3696902218.

The spelling of 1264510901 in words is "one billion, two hundred sixty-four million, five hundred ten thousand, nine hundred one".