1264054331 has 4 divisors (see below), whose sum is σ = 1290949152. Its totient is φ = 1237159512.

The previous prime is 1264054307. The next prime is 1264054381. The reversal of 1264054331 is 1334504621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1334504621 = 7681 ⋅173741.

It is a cyclic number.

It is not a de Polignac number, because 1264054331 - 2²⁶ = 1196945467 is a prime.

It is a super-2 number, since 2×1264054331² = 3195666703439715122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1264054294 and 1264054303.

It is not an unprimeable number, because it can be changed into a prime (1264054381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13447340 + ... + 13447433.

It is an arithmetic number, because the mean of its divisors is an integer number (322737288).

Almost surely, 2^1264054331 is an apocalyptic number.

1264054331 is a deficient number, since it is larger than the sum of its proper divisors (26894821).

1264054331 is an equidigital number, since it uses as much as digits as its factorization.

1264054331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26894820.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1264054331 is about 35553.5417504361. The cubic root of 1264054331 is about 1081.2395264848.

Adding to 1264054331 its reverse (1334504621), we get a palindrome (2598558952).

The spelling of 1264054331 in words is "one billion, two hundred sixty-four million, fifty-four thousand, three hundred thirty-one".