15235531145 has 16 divisors (see below), whose sum is σ = 18376200000. Its totient is φ = 12126206400.

The previous prime is 15235531141. The next prime is 15235531153. The reversal of 15235531145 is 54113553251.

It is not a de Polignac number, because 15235531145 - 2² = 15235531141 is a prime.

It is a super-2 number, since 2×15235531145² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15235531141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 803231 + ... + 821979.

It is an arithmetic number, because the mean of its divisors is an integer number (1148512500).

Almost surely, 2^15235531145 is an apocalyptic number.

It is an amenable number.

15235531145 is a deficient number, since it is larger than the sum of its proper divisors (3140668855).

15235531145 is a wasteful number, since it uses less digits than its factorization.

15235531145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19576.

The product of its digits is 45000, while the sum is 35.

The spelling of 15235531145 in words is "fifteen billion, two hundred thirty-five million, five hundred thirty-one thousand, one hundred forty-five".