1264424761 has 8 divisors (see below), whose sum is σ = 1294365600. Its totient is φ = 1234508352.

The previous prime is 1264424713. The next prime is 1264424771. The reversal of 1264424761 is 1674244621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1264424761 - 2⁷ = 1264424633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1264424761.

It is not an unprimeable number, because it can be changed into a prime (1264424771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138465 + ... + 147313.

It is an arithmetic number, because the mean of its divisors is an integer number (161795700).

Almost surely, 2^1264424761 is an apocalyptic number.

It is an amenable number.

1264424761 is a deficient number, since it is larger than the sum of its proper divisors (29940839).

1264424761 is an equidigital number, since it uses as much as digits as its factorization.

1264424761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12215.

The product of its digits is 64512, while the sum is 37.

The square root of 1264424761 is about 35558.7508357647. The cubic root of 1264424761 is about 1081.3451349306.

The spelling of 1264424761 in words is "one billion, two hundred sixty-four million, four hundred twenty-four thousand, seven hundred sixty-one".