149312263 has 2 divisors, whose sum is σ = 149312264. Its totient is φ = 149312262.

The previous prime is 149312243. The next prime is 149312311. The reversal of 149312263 is 362213941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149312263 - 2⁹ = 149311751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149312243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74656131 + 74656132.

It is an arithmetic number, because the mean of its divisors is an integer number (74656132).

Almost surely, 2^149312263 is an apocalyptic number.

149312263 is a deficient number, since it is larger than the sum of its proper divisors (1).

149312263 is an equidigital number, since it uses as much as digits as its factorization.

149312263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 31.

The square root of 149312263 is about 12219.3397121121. The cubic root of 149312263 is about 530.5160074799.

The spelling of 149312263 in words is "one hundred forty-nine million, three hundred twelve thousand, two hundred sixty-three".