13515030 has 48 divisors (see below), whose sum is σ = 36672480. Its totient is φ = 3446784.

The previous prime is 13515011. The next prime is 13515049. The reversal of 13515030 is 3051531.

It is a happy number.

13515030 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13515011) and next prime (13515049).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13514994 and 13515012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1195 + ... + 5334.

It is an arithmetic number, because the mean of its divisors is an integer number (764010).

Almost surely, 2^13515030 is an apocalyptic number.

13515030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13515030 is an abundant number, since it is smaller than the sum of its proper divisors (23157450).

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

13515030 is a wasteful number, since it uses less digits than its factorization.

13515030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6565 (or 6562 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 13515030 is about 3676.2793691448. The cubic root of 13515030 is about 238.1984903474.

Adding to 13515030 its reverse (3051531), we get a palindrome (16566561).

The spelling of 13515030 in words is "thirteen million, five hundred fifteen thousand, thirty".