1237140680 has 16 divisors (see below), whose sum is σ = 2783566620. Its totient is φ = 494856256.

The previous prime is 1237140679. The next prime is 1237140703. The reversal of 1237140680 is 860417321.

It can be written as a sum of positive squares in 2 ways, for example, as 1101045124 + 136095556 = 33182^2 + 11666^2 .

It is a super-2 number, since 2×1237140680² = 3061034124221724800, which contains 22 as substring.

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, 15464219 + ... + 15464298.

Almost surely, 2^1237140680 is an apocalyptic number.

1237140680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1237140680 is an abundant number, since it is smaller than the sum of its proper divisors (1546425940).

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

1237140680 is a wasteful number, since it uses less digits than its factorization.

1237140680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30928528 (or 30928524 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1237140680 is about 35173.0106758008. The cubic root of 1237140680 is about 1073.5106630183.

The spelling of 1237140680 in words is "one billion, two hundred thirty-seven million, one hundred forty thousand, six hundred eighty".