1131645604 has 12 divisors (see below), whose sum is σ = 1983139200. Its totient is φ = 565034408.

The previous prime is 1131645583. The next prime is 1131645667. The reversal of 1131645604 is 4065461311.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193864 + ... + 199615.

It is an arithmetic number, because the mean of its divisors is an integer number (165261600).

Almost surely, 2^1131645604 is an apocalyptic number.

It is an amenable number.

1131645604 is a deficient number, since it is larger than the sum of its proper divisors (851493596).

1131645604 is a wasteful number, since it uses less digits than its factorization.

1131645604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394202 (or 394200 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1131645604 is about 33639.9406063685. The cubic root of 1131645604 is about 1042.0858053205.

The spelling of 1131645604 in words is "one billion, one hundred thirty-one million, six hundred forty-five thousand, six hundred four".