149931351 has 16 divisors (see below), whose sum is σ = 225764320. Its totient is φ = 98314560.

The previous prime is 149931349. The next prime is 149931359. The reversal of 149931351 is 153139941.

It is not a de Polignac number, because 149931351 - 2¹ = 149931349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149931359) 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 15 ways as a sum of consecutive naturals, for example, 43870 + ... + 47163.

It is an arithmetic number, because the mean of its divisors is an integer number (14110270).

Almost surely, 2^149931351 is an apocalyptic number.

149931351 is a deficient number, since it is larger than the sum of its proper divisors (75832969).

149931351 is an equidigital number, since it uses as much as digits as its factorization.

149931351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91103 (or 91097 counting only the distinct ones).

The product of its digits is 14580, while the sum is 36.

The square root of 149931351 is about 12244.6458094957. The cubic root of 149931351 is about 531.2482161693.

The spelling of 149931351 in words is "one hundred forty-nine million, nine hundred thirty-one thousand, three hundred fifty-one".