1264106536 has 64 divisors (see below), whose sum is σ = 3128906880. Its totient is φ = 463534080.

The previous prime is 1264106521. The next prime is 1264106567. The reversal of 1264106536 is 6356014621.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49885 + ... + 70828.

It is an arithmetic number, because the mean of its divisors is an integer number (48889170).

Almost surely, 2^1264106536 is an apocalyptic number.

It is an amenable number.

1264106536 is an abundant number, since it is smaller than the sum of its proper divisors (1864800344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1264106536 is a wasteful number, since it uses less digits than its factorization.

1264106536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120754 (or 120750 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 1264106536 is about 35554.2759172508. The cubic root of 1264106536 is about 1081.2544112175.

The spelling of 1264106536 in words is "one billion, two hundred sixty-four million, one hundred six thousand, five hundred thirty-six".