149833478 has 16 divisors (see below), whose sum is σ = 245649024. Its totient is φ = 68234880.

The previous prime is 149833441. The next prime is 149833483. The reversal of 149833478 is 874338941.

It is a super-2 number, since 2×149833478² = 44900142259152968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70025 + ... + 72132.

It is an arithmetic number, because the mean of its divisors is an integer number (15353064).

Almost surely, 2^149833478 is an apocalyptic number.

149833478 is a deficient number, since it is larger than the sum of its proper divisors (95815546).

149833478 is a wasteful number, since it uses less digits than its factorization.

149833478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142207.

The product of its digits is 580608, while the sum is 47.

The square root of 149833478 is about 12240.6485939267. The cubic root of 149833478 is about 531.1325939768.

The spelling of 149833478 in words is "one hundred forty-nine million, eight hundred thirty-three thousand, four hundred seventy-eight".