1264155452 has 24 divisors (see below), whose sum is σ = 2587111296. Its totient is φ = 529180848.

The previous prime is 1264155439. The next prime is 1264155467. The reversal of 1264155452 is 2545514621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523778 + ... + 526185.

It is an arithmetic number, because the mean of its divisors is an integer number (107796304).

Almost surely, 2^1264155452 is an apocalyptic number.

It is an amenable number.

1264155452 is an abundant number, since it is smaller than the sum of its proper divisors (1322955844).

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

1264155452 is a wasteful number, since it uses less digits than its factorization.

1264155452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050017 (or 1050015 counting only the distinct ones).

The product of its digits is 48000, while the sum is 35.

The square root of 1264155452 is about 35554.9638166037. The cubic root of 1264155452 is about 1081.2683578159.

The spelling of 1264155452 in words is "one billion, two hundred sixty-four million, one hundred fifty-five thousand, four hundred fifty-two".