1515054464 has 64 divisors (see below), whose sum is σ = 3763065600. Its totient is φ = 590277120.

The previous prime is 1515054421. The next prime is 1515054469. The reversal of 1515054464 is 4644505151.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1515054469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67004 + ... + 86715.

It is an arithmetic number, because the mean of its divisors is an integer number (58797900).

Almost surely, 2^1515054464 is an apocalyptic number.

1515054464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1515054464 is an abundant number, since it is smaller than the sum of its proper divisors (2248011136).

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

1515054464 is a wasteful number, since it uses less digits than its factorization.

1515054464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153751 (or 153739 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 1515054464 is about 38923.7005434992. The cubic root of 1515054464 is about 1148.5310706794.

The spelling of 1515054464 in words is "one billion, five hundred fifteen million, fifty-four thousand, four hundred sixty-four".