149230729 has 2 divisors, whose sum is σ = 149230730. Its totient is φ = 149230728.

The previous prime is 149230691. The next prime is 149230747. The reversal of 149230729 is 927032941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145250704 + 3980025 = 12052^2 + 1995^2 .

It is a cyclic number.

It is not a de Polignac number, because 149230729 - 2²⁷ = 15013001 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (149230759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74615364 + 74615365.

It is an arithmetic number, because the mean of its divisors is an integer number (74615365).

Almost surely, 2^149230729 is an apocalyptic number.

It is an amenable number.

149230729 is a deficient number, since it is larger than the sum of its proper divisors (1).

149230729 is an equidigital number, since it uses as much as digits as its factorization.

149230729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 149230729 is about 12216.0029878844. The cubic root of 149230729 is about 530.4194247277.

The spelling of 149230729 in words is "one hundred forty-nine million, two hundred thirty thousand, seven hundred twenty-nine".