149039247 has 16 divisors (see below), whose sum is σ = 232390400. Its totient is φ = 83184192.

The previous prime is 149039243. The next prime is 149039263. The reversal of 149039247 is 742930941.

It is not a de Polignac number, because 149039247 - 2² = 149039243 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 (149039243) 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, 81622 + ... + 83427.

It is an arithmetic number, because the mean of its divisors is an integer number (14524400).

Almost surely, 2^149039247 is an apocalyptic number.

149039247 is a deficient number, since it is larger than the sum of its proper divisors (83351153).

149039247 is a wasteful number, since it uses less digits than its factorization.

149039247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165102.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 149039247 is about 12208.1631296440. The cubic root of 149039247 is about 530.1924624379.

The spelling of 149039247 in words is "one hundred forty-nine million, thirty-nine thousand, two hundred forty-seven".