159523461 has 48 divisors (see below), whose sum is σ = 255106800. Its totient is φ = 95606784.

The previous prime is 159523457. The next prime is 159523493. The reversal of 159523461 is 164325951.

159523461 is a `hidden beast` number, since 1 + 595 + 2 + 3 + 4 + 61 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 15163236 + 144360225 = 3894^2 + 12015^2 .

It is not a de Polignac number, because 159523461 - 2² = 159523457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159523451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 696495 + ... + 696723.

It is an arithmetic number, because the mean of its divisors is an integer number (5314725).

Almost surely, 2^159523461 is an apocalyptic number.

It is an amenable number.

159523461 is a deficient number, since it is larger than the sum of its proper divisors (95583339).

159523461 is a wasteful number, since it uses less digits than its factorization.

159523461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 435 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 159523461 is about 12630.2597360466. The cubic root of 159523461 is about 542.3440182420.

The spelling of 159523461 in words is "one hundred fifty-nine million, five hundred twenty-three thousand, four hundred sixty-one".