153023081 has 2 divisors, whose sum is σ = 153023082. Its totient is φ = 153023080.

The previous prime is 153023077. The next prime is 153023089. The reversal of 153023081 is 180320351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114147856 + 38875225 = 10684^2 + 6235^2 .

It is a cyclic number.

It is not a de Polignac number, because 153023081 - 2² = 153023077 is a prime.

It is a super-2 number, since 2×153023081² = 46832126637465122, which contains 22 as substring.

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 (153023089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76511540 + 76511541.

It is an arithmetic number, because the mean of its divisors is an integer number (76511541).

Almost surely, 2^153023081 is an apocalyptic number.

It is an amenable number.

153023081 is a deficient number, since it is larger than the sum of its proper divisors (1).

153023081 is an equidigital number, since it uses as much as digits as its factorization.

153023081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 153023081 is about 12370.2498357956. The cubic root of 153023081 is about 534.8750178251.

The spelling of 153023081 in words is "one hundred fifty-three million, twenty-three thousand, eighty-one".