159653493 has 6 divisors (see below), whose sum is σ = 230610614. Its totient is φ = 106435656.

The previous prime is 159653491. The next prime is 159653509. The reversal of 159653493 is 394356951.

159653493 is a `hidden beast` number, since 1 + 596 + 53 + 4 + 9 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 159213924 + 439569 = 12618^2 + 663^2 .

It is not a de Polignac number, because 159653493 - 2¹ = 159653491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159653491) 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 in 5 ways as a sum of consecutive naturals, for example, 8869630 + ... + 8869647.

Almost surely, 2^159653493 is an apocalyptic number.

It is an amenable number.

159653493 is a deficient number, since it is larger than the sum of its proper divisors (70957121).

159653493 is a wasteful number, since it uses less digits than its factorization.

159653493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17739283 (or 17739280 counting only the distinct ones).

The product of its digits is 437400, while the sum is 45.

The square root of 159653493 is about 12635.4063250851. The cubic root of 159653493 is about 542.4913381077.

The spelling of 159653493 in words is "one hundred fifty-nine million, six hundred fifty-three thousand, four hundred ninety-three".