13915530 has 32 divisors (see below), whose sum is σ = 37108800. Its totient is φ = 3710736.

The previous prime is 13915519. The next prime is 13915541. The reversal of 13915530 is 3551931.

It is an interprime number because it is at equal distance from previous prime (13915519) and next prime (13915541).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 13915494 and 13915503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25500 + ... + 26039.

It is an arithmetic number, because the mean of its divisors is an integer number (1159650).

Almost surely, 2^13915530 is an apocalyptic number.

13915530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13915530 is an abundant number, since it is smaller than the sum of its proper divisors (23193270).

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

13915530 is a wasteful number, since it uses less digits than its factorization.

13915530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51555 (or 51549 counting only the distinct ones).

The product of its (nonzero) digits is 2025, while the sum is 27.

The square root of 13915530 is about 3730.3525302577. The cubic root of 13915530 is about 240.5285227444.

The spelling of 13915530 in words is "thirteen million, nine hundred fifteen thousand, five hundred thirty".