15122070 has 24 divisors (see below), whose sum is σ = 39317616. Its totient is φ = 4032528.

The previous prime is 15122069. The next prime is 15122089. The reversal of 15122070 is 7022151.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83922 + ... + 84101.

It is an arithmetic number, because the mean of its divisors is an integer number (1638234).

Almost surely, 2^15122070 is an apocalyptic number.

15122070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15122070 is an abundant number, since it is smaller than the sum of its proper divisors (24195546).

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

15122070 is a wasteful number, since it uses less digits than its factorization.

15122070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168036 (or 168033 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 15122070 is about 3888.7105832139. The cubic root of 15122070 is about 247.2884019452.

The spelling of 15122070 in words is "fifteen million, one hundred twenty-two thousand, seventy".