149633251 has 2 divisors, whose sum is σ = 149633252. Its totient is φ = 149633250.

The previous prime is 149633233. The next prime is 149633261. The reversal of 149633251 is 152336941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149633251 - 2¹³ = 149625059 is a prime.

It is not a weakly prime, because it can be changed into another prime (149633221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74816625 + 74816626.

It is an arithmetic number, because the mean of its divisors is an integer number (74816626).

Almost surely, 2^149633251 is an apocalyptic number.

149633251 is a deficient number, since it is larger than the sum of its proper divisors (1).

149633251 is an equidigital number, since it uses as much as digits as its factorization.

149633251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 34.

The square root of 149633251 is about 12232.4670855883. The cubic root of 149633251 is about 530.8958990047.

The spelling of 149633251 in words is "one hundred forty-nine million, six hundred thirty-three thousand, two hundred fifty-one".