149831157 has 8 divisors (see below), whose sum is σ = 228314176. Its totient is φ = 85617792.

The previous prime is 149831141. The next prime is 149831161. The reversal of 149831157 is 751138941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 149831157 - 2⁴ = 149831141 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 (149836157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3567388 + ... + 3567429.

It is an arithmetic number, because the mean of its divisors is an integer number (28539272).

Almost surely, 2^149831157 is an apocalyptic number.

It is an amenable number.

149831157 is a deficient number, since it is larger than the sum of its proper divisors (78483019).

149831157 is an equidigital number, since it uses as much as digits as its factorization.

149831157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7134827.

The product of its digits is 30240, while the sum is 39.

The square root of 149831157 is about 12240.5537864919. The cubic root of 149831157 is about 531.1298514542.

The spelling of 149831157 in words is "one hundred forty-nine million, eight hundred thirty-one thousand, one hundred fifty-seven".