149297838 has 16 divisors (see below), whose sum is σ = 299064960. Its totient is φ = 49687736.

The previous prime is 149297821. The next prime is 149297843. The reversal of 149297838 is 838792941.

149297838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15348 + ... + 23111.

It is an arithmetic number, because the mean of its divisors is an integer number (18691560).

Almost surely, 2^149297838 is an apocalyptic number.

149297838 is an abundant number, since it is smaller than the sum of its proper divisors (149767122).

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

149297838 is a wasteful number, since it uses less digits than its factorization.

149297838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39111.

The product of its digits is 870912, while the sum is 51.

The square root of 149297838 is about 12218.7494450128. The cubic root of 149297838 is about 530.4989226142.

The spelling of 149297838 in words is "one hundred forty-nine million, two hundred ninety-seven thousand, eight hundred thirty-eight".