153235493 has 2 divisors, whose sum is σ = 153235494. Its totient is φ = 153235492.

The previous prime is 153235471. The next prime is 153235517. The reversal of 153235493 is 394532351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149401729 + 3833764 = 12223^2 + 1958^2 .

It is a cyclic number.

It is not a de Polignac number, because 153235493 - 2⁸ = 153235237 is a prime.

It is a super-2 number, since 2×153235493² = 46962232629906098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153235403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76617746 + 76617747.

It is an arithmetic number, because the mean of its divisors is an integer number (76617747).

Almost surely, 2^153235493 is an apocalyptic number.

It is an amenable number.

153235493 is a deficient number, since it is larger than the sum of its proper divisors (1).

153235493 is an equidigital number, since it uses as much as digits as its factorization.

153235493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48600, while the sum is 35.

The square root of 153235493 is about 12378.8324570615. The cubic root of 153235493 is about 535.1223908418.

The spelling of 153235493 in words is "one hundred fifty-three million, two hundred thirty-five thousand, four hundred ninety-three".