1310536989 has 40 divisors (see below), whose sum is σ = 2099766240. Its totient is φ = 812039904.

The previous prime is 1310536979. The next prime is 1310537047. The reversal of 1310536989 is 9896350131.

1310536989 is a `hidden beast` number, since 1 + 31 + 0 + 536 + 9 + 89 = 666.

It is not a de Polignac number, because 1310536989 - 2⁴ = 1310536973 is a prime.

It is a super-2 number, since 2×1310536989² = 3435014399074372242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310536939) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 73534 + ... + 89600.

It is an arithmetic number, because the mean of its divisors is an integer number (52494156).

Almost surely, 2^1310536989 is an apocalyptic number.

1310536989 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1310536989 is a deficient number, since it is larger than the sum of its proper divisors (789229251).

1310536989 is a wasteful number, since it uses less digits than its factorization.

1310536989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16151 (or 16142 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 1310536989 is about 36201.3396022854. The cubic root of 1310536989 is about 1094.3336685400. Note that the first 3 decimals are identical.

The spelling of 1310536989 in words is "one billion, three hundred ten million, five hundred thirty-six thousand, nine hundred eighty-nine".