149323499291 has 2 divisors, whose sum is σ = 149323499292. Its totient is φ = 149323499290.

The previous prime is 149323499243. The next prime is 149323499293. The reversal of 149323499291 is 192994323941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149323499291 - 2²⁶ = 149256390427 is a prime.

It is a Sophie Germain prime.

Together with 149323499293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (149323499293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74661749645 + 74661749646.

It is an arithmetic number, because the mean of its divisors is an integer number (74661749646).

Almost surely, 2^149323499291 is an apocalyptic number.

149323499291 is a deficient number, since it is larger than the sum of its proper divisors (1).

149323499291 is an equidigital number, since it uses as much as digits as its factorization.

149323499291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3779136, while the sum is 56.

The spelling of 149323499291 in words is "one hundred forty-nine billion, three hundred twenty-three million, four hundred ninety-nine thousand, two hundred ninety-one".