1137987898 has 32 divisors (see below), whose sum is σ = 1811275200. Its totient is φ = 535417344.

The previous prime is 1137987889. The next prime is 1137987911. The reversal of 1137987898 is 8987897311.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375433 + ... + 378451.

It is an arithmetic number, because the mean of its divisors is an integer number (56602350).

Almost surely, 2^1137987898 is an apocalyptic number.

1137987898 is a deficient number, since it is larger than the sum of its proper divisors (673287302).

1137987898 is a wasteful number, since it uses less digits than its factorization.

1137987898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3214.

The product of its digits is 6096384, while the sum is 61.

The square root of 1137987898 is about 33734.0762138227. The cubic root of 1137987898 is about 1044.0289654231.

The spelling of 1137987898 in words is "one billion, one hundred thirty-seven million, nine hundred eighty-seven thousand, eight hundred ninety-eight".