1264453051 has 4 divisors (see below), whose sum is σ = 1264728312. Its totient is φ = 1264177792.

The previous prime is 1264453033. The next prime is 1264453063. The reversal of 1264453051 is 1503544621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1503544621 = 1129 ⋅1331749.

It is a cyclic number.

It is not a de Polignac number, because 1264453051 - 2⁷ = 1264452923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1264450051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130621 + ... + 139966.

It is an arithmetic number, because the mean of its divisors is an integer number (316182078).

Almost surely, 2^1264453051 is an apocalyptic number.

1264453051 is a deficient number, since it is larger than the sum of its proper divisors (275261).

1264453051 is an equidigital number, since it uses as much as digits as its factorization.

1264453051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275260.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 1264453051 is about 35559.1486259162. The cubic root of 1264453051 is about 1081.3531994741.

Adding to 1264453051 its reverse (1503544621), we get a palindrome (2767997672).

The spelling of 1264453051 in words is "one billion, two hundred sixty-four million, four hundred fifty-three thousand, fifty-one".