13120530 has 16 divisors (see below), whose sum is σ = 31489344. Its totient is φ = 3498800.

The previous prime is 13120529. The next prime is 13120531. The reversal of 13120530 is 3502131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13120529) and next prime (13120531).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (13120531) 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, 218646 + ... + 218705.

It is an arithmetic number, because the mean of its divisors is an integer number (1968084).

Almost surely, 2^13120530 is an apocalyptic number.

13120530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13120530 is an abundant number, since it is smaller than the sum of its proper divisors (18368814).

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

13120530 is a wasteful number, since it uses less digits than its factorization.

13120530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437361.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 13120530 is about 3622.2272154021. The cubic root of 13120530 is about 235.8579174456.

Adding to 13120530 its reverse (3502131), we get a palindrome (16622661).

The spelling of 13120530 in words is "thirteen million, one hundred twenty thousand, five hundred thirty".