13520070 has 24 divisors (see below), whose sum is σ = 35152416. Its totient is φ = 3605328.

The previous prime is 13520069. The next prime is 13520071. The reversal of 13520070 is 7002531.

13520070 is digitally balanced in base 2, because in such base 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 (13520069) and next prime (13520071).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13520071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75022 + ... + 75201.

It is an arithmetic number, because the mean of its divisors is an integer number (1464684).

Almost surely, 2^13520070 is an apocalyptic number.

13520070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13520070 is an abundant number, since it is smaller than the sum of its proper divisors (21632346).

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

13520070 is a wasteful number, since it uses less digits than its factorization.

13520070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150236 (or 150233 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 13520070 is about 3676.9647809029. The cubic root of 13520070 is about 238.2280961810.

The spelling of 13520070 in words is "thirteen million, five hundred twenty thousand, seventy".