149609838 has 48 divisors (see below), whose sum is σ = 366405120. Its totient is φ = 40494384.

The previous prime is 149609827. The next prime is 149609849. The reversal of 149609838 is 838906941.

It is an interprime number because it is at equal distance from previous prime (149609827) and next prime (149609849).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7806 + ... + 18977.

It is an arithmetic number, because the mean of its divisors is an integer number (7633440).

Almost surely, 2^149609838 is an apocalyptic number.

149609838 is an abundant number, since it is smaller than the sum of its proper divisors (216795282).

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

149609838 is a wasteful number, since it uses less digits than its factorization.

149609838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26821 (or 26814 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 149609838 is about 12231.5100457793. The cubic root of 149609838 is about 530.8682079357.

The spelling of 149609838 in words is "one hundred forty-nine million, six hundred nine thousand, eight hundred thirty-eight".