1264262611 has 2 divisors, whose sum is σ = 1264262612. Its totient is φ = 1264262610.

The previous prime is 1264262591. The next prime is 1264262617. The reversal of 1264262611 is 1162624621.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1162624621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1264262611 is a prime.

It is not a weakly prime, because it can be changed into another prime (1264262617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632131305 + 632131306.

It is an arithmetic number, because the mean of its divisors is an integer number (632131306).

Almost surely, 2^1264262611 is an apocalyptic number.

1264262611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264262611 is an equidigital number, since it uses as much as digits as its factorization.

1264262611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 31.

The square root of 1264262611 is about 35556.4707331872. The cubic root of 1264262611 is about 1081.2989090064.

The spelling of 1264262611 in words is "one billion, two hundred sixty-four million, two hundred sixty-two thousand, six hundred eleven".