149156291 has 2 divisors, whose sum is σ = 149156292. Its totient is φ = 149156290.

The previous prime is 149156269. The next prime is 149156299. The reversal of 149156291 is 192651941.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149156291 is a prime.

It is not a weakly prime, because it can be changed into another prime (149156299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74578145 + 74578146.

It is an arithmetic number, because the mean of its divisors is an integer number (74578146).

Almost surely, 2^149156291 is an apocalyptic number.

149156291 is a deficient number, since it is larger than the sum of its proper divisors (1).

149156291 is an equidigital number, since it uses as much as digits as its factorization.

149156291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 38.

The square root of 149156291 is about 12212.9558666197. The cubic root of 149156291 is about 530.3312169612.

The spelling of 149156291 in words is "one hundred forty-nine million, one hundred fifty-six thousand, two hundred ninety-one".