149474323 has 4 divisors (see below), whose sum is σ = 154628640. Its totient is φ = 144320008.

The previous prime is 149474293. The next prime is 149474327. The reversal of 149474323 is 323474941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323474941 = 461 ⋅701681.

It is not a de Polignac number, because 149474323 - 2⁵ = 149474291 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149474327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2577115 + ... + 2577172.

It is an arithmetic number, because the mean of its divisors is an integer number (38657160).

Almost surely, 2^149474323 is an apocalyptic number.

149474323 is a deficient number, since it is larger than the sum of its proper divisors (5154317).

149474323 is an equidigital number, since it uses as much as digits as its factorization.

149474323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5154316.

The product of its digits is 72576, while the sum is 37.

The square root of 149474323 is about 12225.9692049342. The cubic root of 149474323 is about 530.7078745910.

The spelling of 149474323 in words is "one hundred forty-nine million, four hundred seventy-four thousand, three hundred twenty-three".