152120729 has 2 divisors, whose sum is σ = 152120730. Its totient is φ = 152120728.

The previous prime is 152120711. The next prime is 152120797. The reversal of 152120729 is 927021251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112933129 + 39187600 = 10627^2 + 6260^2 .

It is a cyclic number.

It is not a de Polignac number, because 152120729 - 2²⁰ = 151072153 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (152120629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76060364 + 76060365.

It is an arithmetic number, because the mean of its divisors is an integer number (76060365).

Almost surely, 2^152120729 is an apocalyptic number.

It is an amenable number.

152120729 is a deficient number, since it is larger than the sum of its proper divisors (1).

152120729 is an equidigital number, since it uses as much as digits as its factorization.

152120729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 152120729 is about 12333.7232415844. The cubic root of 152120729 is about 533.8215877304.

The spelling of 152120729 in words is "one hundred fifty-two million, one hundred twenty thousand, seven hundred twenty-nine".