13520514 has 32 divisors (see below), whose sum is σ = 32532480. Its totient is φ = 3659472.

The previous prime is 13520509. The next prime is 13520531. The reversal of 13520514 is 41502531.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

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, 7674 + ... + 9269.

It is an arithmetic number, because the mean of its divisors is an integer number (1016640).

Almost surely, 2^13520514 is an apocalyptic number.

13520514 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13520514 is an abundant number, since it is smaller than the sum of its proper divisors (19011966).

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

13520514 is a wasteful number, since it uses less digits than its factorization.

13520514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16974.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 13520514 is about 3677.0251562914. The cubic root of 13520514 is about 238.2307039613.

The spelling of 13520514 in words is "thirteen million, five hundred twenty thousand, five hundred fourteen".