1137445720 has 32 divisors (see below), whose sum is σ = 2607545520. Its totient is φ = 446392960.

The previous prime is 1137445679. The next prime is 1137445747. The reversal of 1137445720 is 275447311.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266146 + ... + 270385.

Almost surely, 2^1137445720 is an apocalyptic number.

1137445720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1137445720 is an abundant number, since it is smaller than the sum of its proper divisors (1470099800).

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

1137445720 is a wasteful number, since it uses less digits than its factorization.

1137445720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536595 (or 536591 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 1137445720 is about 33726.0391982219. The cubic root of 1137445720 is about 1043.8631348794.

The spelling of 1137445720 in words is "one billion, one hundred thirty-seven million, four hundred forty-five thousand, seven hundred twenty".