1513778052 has 12 divisors (see below), whose sum is σ = 3532148816. Its totient is φ = 504592680.

The previous prime is 1513778029. The next prime is 1513778069. The reversal of 1513778052 is 2508773151.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1513778052.

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, 63074074 + ... + 63074097.

Almost surely, 2^1513778052 is an apocalyptic number.

1513778052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1513778052 is an abundant number, since it is smaller than the sum of its proper divisors (2018370764).

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

1513778052 is a wasteful number, since it uses less digits than its factorization.

1513778052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126148178 (or 126148176 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 39.

The square root of 1513778052 is about 38907.3007544857. The cubic root of 1513778052 is about 1148.2084396535.

The spelling of 1513778052 in words is "one billion, five hundred thirteen million, seven hundred seventy-eight thousand, fifty-two".