153795993 has 32 divisors (see below), whose sum is σ = 227466624. Its totient is φ = 91832832.

The previous prime is 153795989. The next prime is 153796007. The reversal of 153795993 is 399597351.

It is not a de Polignac number, because 153795993 - 2² = 153795989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (153795953) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 491205 + ... + 491517.

It is an arithmetic number, because the mean of its divisors is an integer number (7108332).

Almost surely, 2^153795993 is an apocalyptic number.

153795993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

153795993 is a deficient number, since it is larger than the sum of its proper divisors (73670631).

153795993 is a wasteful number, since it uses less digits than its factorization.

153795993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665.

The product of its digits is 1148175, while the sum is 51.

The square root of 153795993 is about 12401.4512457212. The cubic root of 153795993 is about 535.7740482712.

The spelling of 153795993 in words is "one hundred fifty-three million, seven hundred ninety-five thousand, nine hundred ninety-three".