149718929 has 2 divisors, whose sum is σ = 149718930. Its totient is φ = 149718928.

The previous prime is 149718901. The next prime is 149718971. The reversal of 149718929 is 929817941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146289025 + 3429904 = 12095^2 + 1852^2 .

It is a cyclic number.

It is not a de Polignac number, because 149718929 - 2¹⁶ = 149653393 is a prime.

It is not a weakly prime, because it can be changed into another prime (149718629) 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, 74859464 + 74859465.

It is an arithmetic number, because the mean of its divisors is an integer number (74859465).

Almost surely, 2^149718929 is an apocalyptic number.

It is an amenable number.

149718929 is a deficient number, since it is larger than the sum of its proper divisors (1).

149718929 is an equidigital number, since it uses as much as digits as its factorization.

149718929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 50.

The square root of 149718929 is about 12235.9686580180. The cubic root of 149718929 is about 530.9972076370.

The spelling of 149718929 in words is "one hundred forty-nine million, seven hundred eighteen thousand, nine hundred twenty-nine".