153305723 has 2 divisors, whose sum is σ = 153305724. Its totient is φ = 153305722.

The previous prime is 153305701. The next prime is 153305729. The reversal of 153305723 is 327503351.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153305723 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (153305729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76652861 + 76652862.

It is an arithmetic number, because the mean of its divisors is an integer number (76652862).

Almost surely, 2^153305723 is an apocalyptic number.

153305723 is a deficient number, since it is larger than the sum of its proper divisors (1).

153305723 is an equidigital number, since it uses as much as digits as its factorization.

153305723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9450, while the sum is 29.

The square root of 153305723 is about 12381.6688293622. The cubic root of 153305723 is about 535.2041297497.

The spelling of 153305723 in words is "one hundred fifty-three million, three hundred five thousand, seven hundred twenty-three".