1264140853 has 8 divisors (see below), whose sum is σ = 1298916000. Its totient is φ = 1229397840.

The previous prime is 1264140841. The next prime is 1264140863. The reversal of 1264140853 is 3580414621.

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 1264140853 - 2²⁹ = 727269941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264140803) 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, 86898 + ... + 100396.

It is an arithmetic number, because the mean of its divisors is an integer number (162364500).

Almost surely, 2^1264140853 is an apocalyptic number.

It is an amenable number.

1264140853 is a deficient number, since it is larger than the sum of its proper divisors (34775147).

1264140853 is a wasteful number, since it uses less digits than its factorization.

1264140853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16067.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 1264140853 is about 35554.7585141567. The cubic root of 1264140853 is about 1081.2641954856.

The spelling of 1264140853 in words is "one billion, two hundred sixty-four million, one hundred forty thousand, eight hundred fifty-three".