1137215980 has 12 divisors (see below), whose sum is σ = 2388153600. Its totient is φ = 454886384.

The previous prime is 1137215971. The next prime is 1137215983. The reversal of 1137215980 is 895127311.

It is not an unprimeable number, because it can be changed into a prime (1137215983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28430380 + ... + 28430419.

It is an arithmetic number, because the mean of its divisors is an integer number (199012800).

Almost surely, 2^1137215980 is an apocalyptic number.

1137215980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1137215980 is an abundant number, since it is smaller than the sum of its proper divisors (1250937620).

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

1137215980 is a wasteful number, since it uses less digits than its factorization.

1137215980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56860808 (or 56860806 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 1137215980 is about 33722.6330525954. The cubic root of 1137215980 is about 1043.7928507154.

The spelling of 1137215980 in words is "one billion, one hundred thirty-seven million, two hundred fifteen thousand, nine hundred eighty".