149838318 has 24 divisors (see below), whose sum is σ = 371028528. Its totient is φ = 42810912.

The previous prime is 149838317. The next prime is 149838319. The reversal of 149838318 is 813838941.

It is an interprime number because it is at equal distance from previous prime (149838317) and next prime (149838319).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149838317) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 594471 + ... + 594722.

It is an arithmetic number, because the mean of its divisors is an integer number (15459522).

Almost surely, 2^149838318 is an apocalyptic number.

149838318 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

149838318 is an abundant number, since it is smaller than the sum of its proper divisors (221190210).

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

149838318 is a wasteful number, since it uses less digits than its factorization.

149838318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189208 (or 1189205 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 149838318 is about 12240.8462942723. The cubic root of 149838318 is about 531.1383128902.

The spelling of 149838318 in words is "one hundred forty-nine million, eight hundred thirty-eight thousand, three hundred eighteen".