149178959 has 2 divisors, whose sum is σ = 149178960. Its totient is φ = 149178958.

The previous prime is 149178907. The next prime is 149178973. The reversal of 149178959 is 959871941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149178959 - 2⁸ = 149178703 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149178959.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149178979) 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, 74589479 + 74589480.

It is an arithmetic number, because the mean of its divisors is an integer number (74589480).

Almost surely, 2^149178959 is an apocalyptic number.

149178959 is a deficient number, since it is larger than the sum of its proper divisors (1).

149178959 is an equidigital number, since it uses as much as digits as its factorization.

149178959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 53.

The square root of 149178959 is about 12213.8838622283. The cubic root of 149178959 is about 530.3580812636.

The spelling of 149178959 in words is "one hundred forty-nine million, one hundred seventy-eight thousand, nine hundred fifty-nine".