1315065144 has 16 divisors (see below), whose sum is σ = 3287662920. Its totient is φ = 438355040.

The previous prime is 1315065139. The next prime is 1315065163. The reversal of 1315065144 is 4415605131.

It is a happy number.

It is a congruent number.

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, 27397167 + ... + 27397214.

Almost surely, 2^1315065144 is an apocalyptic number.

It is an amenable number.

1315065144 is an abundant number, since it is smaller than the sum of its proper divisors (1972597776).

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

1315065144 is a wasteful number, since it uses less digits than its factorization.

1315065144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54794390 (or 54794386 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1315065144 is about 36263.8269353911. The cubic root of 1315065144 is about 1095.5925968169.

The spelling of 1315065144 in words is "one billion, three hundred fifteen million, sixty-five thousand, one hundred forty-four".