149289474 has 8 divisors (see below), whose sum is σ = 298578960. Its totient is φ = 49763156.

The previous prime is 149289473. The next prime is 149289523. The reversal of 149289474 is 474982941.

149289474 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

149289474 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (149289473) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12440784 + ... + 12440795.

It is an arithmetic number, because the mean of its divisors is an integer number (37322370).

Almost surely, 2^149289474 is an apocalyptic number.

149289474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149289474 is a wasteful number, since it uses less digits than its factorization.

149289474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24881584.

The product of its digits is 580608, while the sum is 48.

The square root of 149289474 is about 12218.4071793340. The cubic root of 149289474 is about 530.4890158491.

The spelling of 149289474 in words is "one hundred forty-nine million, two hundred eighty-nine thousand, four hundred seventy-four".