15512142149 has 16 divisors (see below), whose sum is σ = 18514974720. Its totient is φ = 12707014320.

The previous prime is 15512142097. The next prime is 15512142181. The reversal of 15512142149 is 94124121551.

It is not a de Polignac number, because 15512142149 - 2⁸ = 15512141893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15511142149) 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, 147392 + ... + 229670.

It is an arithmetic number, because the mean of its divisors is an integer number (1157185920).

Almost surely, 2^15512142149 is an apocalyptic number.

It is an amenable number.

15512142149 is a deficient number, since it is larger than the sum of its proper divisors (3002832571).

15512142149 is a wasteful number, since it uses less digits than its factorization.

15512142149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83480.

The product of its digits is 14400, while the sum is 35.

The spelling of 15512142149 in words is "fifteen billion, five hundred twelve million, one hundred forty-two thousand, one hundred forty-nine".