2015031545151 has 4 divisors (see below), whose sum is σ = 2686708726872. Its totient is φ = 1343354363432.

The previous prime is 2015031545143. The next prime is 2015031545161. The reversal of 2015031545151 is 1515451305102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2015031545151 - 2³ = 2015031545143 is a prime.

It is a super-2 number, since 2×2015031545151² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015031545161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335838590856 + ... + 335838590861.

It is an arithmetic number, because the mean of its divisors is an integer number (671677181718).

Almost surely, 2^{2015031545151} is an apocalyptic number.

2015031545151 is a deficient number, since it is larger than the sum of its proper divisors (671677181721).

2015031545151 is an equidigital number, since it uses as much as digits as its factorization.

2015031545151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671677181720.

The product of its (nonzero) digits is 15000, while the sum is 33.

The spelling of 2015031545151 in words is "two trillion, fifteen billion, thirty-one million, five hundred forty-five thousand, one hundred fifty-one".