148915729 has 2 divisors, whose sum is σ = 148915730. Its totient is φ = 148915728.

The previous prime is 148915727. The next prime is 148915817. The reversal of 148915729 is 927519841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105987025 + 42928704 = 10295^2 + 6552^2 .

It is a cyclic number.

It is not a de Polignac number, because 148915729 - 2¹ = 148915727 is a prime.

Together with 148915727, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (148915727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74457864 + 74457865.

It is an arithmetic number, because the mean of its divisors is an integer number (74457865).

Almost surely, 2^148915729 is an apocalyptic number.

It is an amenable number.

148915729 is a deficient number, since it is larger than the sum of its proper divisors (1).

148915729 is an equidigital number, since it uses as much as digits as its factorization.

148915729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 46.

The square root of 148915729 is about 12203.1032528615. The cubic root of 148915729 is about 530.0459542449.

The spelling of 148915729 in words is "one hundred forty-eight million, nine hundred fifteen thousand, seven hundred twenty-nine".