149266231 has 2 divisors, whose sum is σ = 149266232. Its totient is φ = 149266230.

The previous prime is 149266193. The next prime is 149266237. The reversal of 149266231 is 132662941.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (132662941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149266231 - 2¹¹ = 149264183 is a prime.

It is a super-2 number, since 2×149266231² = 44560815433890722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149266237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74633115 + 74633116.

It is an arithmetic number, because the mean of its divisors is an integer number (74633116).

Almost surely, 2^149266231 is an apocalyptic number.

149266231 is a deficient number, since it is larger than the sum of its proper divisors (1).

149266231 is an equidigital number, since it uses as much as digits as its factorization.

149266231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 149266231 is about 12217.4559954190. The cubic root of 149266231 is about 530.4614836643.

The spelling of 149266231 in words is "one hundred forty-nine million, two hundred sixty-six thousand, two hundred thirty-one".