15012532909201 has 9 divisors (see below), whose sum is σ = 15369951427401. Its totient is φ = 14663241503652.

The previous prime is 15012532909169. The next prime is 15012532909219. The reversal of 15012532909201 is 10290923521051.

It is a happy number.

The square root of 15012532909201 is 3874601.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 15012532909201 - 2⁵ = 15012532909169 is a prime.

It is a super-2 number, since 2×15012532909201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15012532909501) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 166562790 + ... + 166652896.

Almost surely, 2^{15012532909201} is an apocalyptic number.

15012532909201 is the 3874601-st square number.

15012532909201 is the 1937301-st centered octagonal number.

It is an amenable number.

15012532909201 is a deficient number, since it is larger than the sum of its proper divisors (357418518200).

15012532909201 is an frugal number, since it uses more digits than its factorization.

15012532909201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180300 (or 90150 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 40.

The spelling of 15012532909201 in words is "fifteen trillion, twelve billion, five hundred thirty-two million, nine hundred nine thousand, two hundred one".