149298831 has 24 divisors (see below), whose sum is σ = 235872000. Its totient is φ = 90248400.

The previous prime is 149298829. The next prime is 149298839. The reversal of 149298831 is 138892941.

It is not a de Polignac number, because 149298831 - 2¹ = 149298829 is a prime.

It is a super-2 number, since 2×149298831² = 44580281875933122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149298839) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40920 + ... + 44418.

It is an arithmetic number, because the mean of its divisors is an integer number (9828000).

Almost surely, 2^149298831 is an apocalyptic number.

149298831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

149298831 is a deficient number, since it is larger than the sum of its proper divisors (86573169).

149298831 is a wasteful number, since it uses less digits than its factorization.

149298831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3947 (or 3944 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 149298831 is about 12218.7900792182. The cubic root of 149298831 is about 530.5000987515.

The spelling of 149298831 in words is "one hundred forty-nine million, two hundred ninety-eight thousand, eight hundred thirty-one".