149415109131 has 4 divisors (see below), whose sum is σ = 199220145512. Its totient is φ = 99610072752.

The previous prime is 149415109117. The next prime is 149415109201. The reversal of 149415109131 is 131901514941.

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

It is not a de Polignac number, because 149415109131 - 2²² = 149410914827 is a prime.

It is a super-2 number, since 2×149415109131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149415109131.

It is not an unprimeable number, because it can be changed into a prime (149415109111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24902518186 + ... + 24902518191.

It is an arithmetic number, because the mean of its divisors is an integer number (49805036378).

Almost surely, 2^149415109131 is an apocalyptic number.

149415109131 is a deficient number, since it is larger than the sum of its proper divisors (49805036381).

149415109131 is an equidigital number, since it uses as much as digits as its factorization.

149415109131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49805036380.

The product of its (nonzero) digits is 19440, while the sum is 39.

The spelling of 149415109131 in words is "one hundred forty-nine billion, four hundred fifteen million, one hundred nine thousand, one hundred thirty-one".