149971692 has 48 divisors (see below), whose sum is σ = 377760992. Its totient is φ = 46033920.

The previous prime is 149971639. The next prime is 149971699. The reversal of 149971692 is 296179941.

It is not an unprimeable number, because it can be changed into a prime (149971699) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 83508 + ... + 85284.

Almost surely, 2^149971692 is an apocalyptic number.

149971692 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

149971692 is an abundant number, since it is smaller than the sum of its proper divisors (227789300).

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

149971692 is a wasteful number, since it uses less digits than its factorization.

149971692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338 (or 2336 counting only the distinct ones).

The product of its digits is 244944, while the sum is 48.

The square root of 149971692 is about 12246.2929901256. The cubic root of 149971692 is about 531.2958583343.

The spelling of 149971692 in words is "one hundred forty-nine million, nine hundred seventy-one thousand, six hundred ninety-two".