149405959 has 2 divisors, whose sum is σ = 149405960. Its totient is φ = 149405958.

The previous prime is 149405881. The next prime is 149405983. The reversal of 149405959 is 959504941.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (959504941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149405959 - 2²³ = 141017351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149405989) 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, 74702979 + 74702980.

It is an arithmetic number, because the mean of its divisors is an integer number (74702980).

Almost surely, 2^149405959 is an apocalyptic number.

149405959 is a deficient number, since it is larger than the sum of its proper divisors (1).

149405959 is an equidigital number, since it uses as much as digits as its factorization.

149405959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 291600, while the sum is 46.

The square root of 149405959 is about 12223.1730332185. The cubic root of 149405959 is about 530.6269535671.

The spelling of 149405959 in words is "one hundred forty-nine million, four hundred five thousand, nine hundred fifty-nine".