149540894 has 24 divisors (see below), whose sum is σ = 235790352. Its totient is φ = 71123360.

The previous prime is 149540873. The next prime is 149540947. The reversal of 149540894 is 498045941.

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 11 ways as a sum of consecutive naturals, for example, 297047 + ... + 297549.

It is an arithmetic number, because the mean of its divisors is an integer number (9824598).

Almost surely, 2^149540894 is an apocalyptic number.

149540894 is a deficient number, since it is larger than the sum of its proper divisors (86249458).

149540894 is a wasteful number, since it uses less digits than its factorization.

149540894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832 (or 809 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 149540894 is about 12228.6914263138. The cubic root of 149540894 is about 530.7866495708.

The spelling of 149540894 in words is "one hundred forty-nine million, five hundred forty thousand, eight hundred ninety-four".