149794031 has 6 divisors (see below), whose sum is σ = 151504032. Its totient is φ = 148103120.

The previous prime is 149794027. The next prime is 149794049. The reversal of 149794031 is 130497941.

It is not a de Polignac number, because 149794031 - 2² = 149794027 is a prime.

It is a super-2 number, since 2×149794031² = 44876503446457922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149794061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1535 + ... + 17376.

It is an arithmetic number, because the mean of its divisors is an integer number (25250672).

Almost surely, 2^149794031 is an apocalyptic number.

149794031 is a deficient number, since it is larger than the sum of its proper divisors (1710001).

149794031 is an frugal number, since it uses more digits than its factorization.

149794031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19089 (or 19000 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 149794031 is about 12239.0371761834. The cubic root of 149794031 is about 531.0859790577.

The spelling of 149794031 in words is "one hundred forty-nine million, seven hundred ninety-four thousand, thirty-one".