149090233 has 2 divisors, whose sum is σ = 149090234. Its totient is φ = 149090232.

The previous prime is 149090231. The next prime is 149090237. The reversal of 149090233 is 332090941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140493609 + 8596624 = 11853^2 + 2932^2 .

It is a cyclic number.

It is not a de Polignac number, because 149090233 - 2¹ = 149090231 is a prime.

Together with 149090231, it forms a pair of twin primes.

It is equal to p_8396104 and since 149090233 and 8396104 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 149090195 and 149090204.

It is not a weakly prime, because it can be changed into another prime (149090231) 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, 74545116 + 74545117.

It is an arithmetic number, because the mean of its divisors is an integer number (74545117).

Almost surely, 2^149090233 is an apocalyptic number.

It is an amenable number.

149090233 is a deficient number, since it is larger than the sum of its proper divisors (1).

149090233 is an equidigital number, since it uses as much as digits as its factorization.

149090233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 149090233 is about 12210.2511440183. The cubic root of 149090233 is about 530.2529147717.

The spelling of 149090233 in words is "one hundred forty-nine million, ninety thousand, two hundred thirty-three".