149956559 has 2 divisors, whose sum is σ = 149956560. Its totient is φ = 149956558.

The previous prime is 149956549. The next prime is 149956603. The reversal of 149956559 is 955659941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149956559 - 2¹² = 149952463 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 149956559.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149956529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74978279 + 74978280.

It is an arithmetic number, because the mean of its divisors is an integer number (74978280).

Almost surely, 2^149956559 is an apocalyptic number.

149956559 is a deficient number, since it is larger than the sum of its proper divisors (1).

149956559 is an equidigital number, since it uses as much as digits as its factorization.

149956559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2187000, while the sum is 53.

The square root of 149956559 is about 12245.6751140964. The cubic root of 149956559 is about 531.2779874713.

The spelling of 149956559 in words is "one hundred forty-nine million, nine hundred fifty-six thousand, five hundred fifty-nine".