149198231 has 16 divisors (see below), whose sum is σ = 183935808. Its totient is φ = 117849600.

The previous prime is 149198209. The next prime is 149198251. The reversal of 149198231 is 132891941.

149198231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 149198231 - 2¹⁴ = 149181847 is a prime.

It is a super-2 number, since 2×149198231² = 44520224267058722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149198251) 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, 79241 + ... + 81101.

It is an arithmetic number, because the mean of its divisors is an integer number (11495988).

Almost surely, 2^149198231 is an apocalyptic number.

149198231 is a deficient number, since it is larger than the sum of its proper divisors (34737577).

149198231 is a wasteful number, since it uses less digits than its factorization.

149198231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762.

The product of its digits is 15552, while the sum is 38.

The square root of 149198231 is about 12214.6727749866. The cubic root of 149198231 is about 530.3809187578.

The spelling of 149198231 in words is "one hundred forty-nine million, one hundred ninety-eight thousand, two hundred thirty-one".