149839494 has 32 divisors (see below), whose sum is σ = 343458816. Its totient is φ = 42690240.

The previous prime is 149839471. The next prime is 149839499. The reversal of 149839494 is 494938941.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149839499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10554 + ... + 20274.

It is an arithmetic number, because the mean of its divisors is an integer number (10733088).

Almost surely, 2^149839494 is an apocalyptic number.

149839494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

149839494 is an abundant number, since it is smaller than the sum of its proper divisors (193619322).

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

149839494 is a wasteful number, since it uses less digits than its factorization.

149839494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100.

The product of its digits is 1119744, while the sum is 51.

The square root of 149839494 is about 12240.8943300725. The cubic root of 149839494 is about 531.1397024258.

The spelling of 149839494 in words is "one hundred forty-nine million, eight hundred thirty-nine thousand, four hundred ninety-four".