149396729 has 2 divisors, whose sum is σ = 149396730. Its totient is φ = 149396728.

The previous prime is 149396701. The next prime is 149396759. The reversal of 149396729 is 927693941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88868329 + 60528400 = 9427^2 + 7780^2 .

It is a cyclic number.

It is not a de Polignac number, because 149396729 - 2²⁰ = 148348153 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (149396759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74698364 + 74698365.

It is an arithmetic number, because the mean of its divisors is an integer number (74698365).

Almost surely, 2^149396729 is an apocalyptic number.

It is an amenable number.

149396729 is a deficient number, since it is larger than the sum of its proper divisors (1).

149396729 is an equidigital number, since it uses as much as digits as its factorization.

149396729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 50.

The square root of 149396729 is about 12222.7954658499. The cubic root of 149396729 is about 530.6160263197.

The spelling of 149396729 in words is "one hundred forty-nine million, three hundred ninety-six thousand, seven hundred twenty-nine".