1315772870 has 16 divisors (see below), whose sum is σ = 2369319120. Its totient is φ = 526102944.

The previous prime is 1315772869. The next prime is 1315772903. The reversal of 1315772870 is 782775131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2501 + ... + 51359.

It is an arithmetic number, because the mean of its divisors is an integer number (148082445).

Almost surely, 2^1315772870 is an apocalyptic number.

1315772870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1315772870 is a deficient number, since it is larger than the sum of its proper divisors (1053546250).

1315772870 is a wasteful number, since it uses less digits than its factorization.

1315772870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51559.

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 1315772870 is about 36273.5836387860. The cubic root of 1315772870 is about 1095.7890992022.

The spelling of 1315772870 in words is "one billion, three hundred fifteen million, seven hundred seventy-two thousand, eight hundred seventy".