159670531 has 4 divisors (see below), whose sum is σ = 166612752. Its totient is φ = 152728312.

The previous prime is 159670507. The next prime is 159670541. The reversal of 159670531 is 135076951.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159670531 is a prime.

It is a super-2 number, since 2×159670531² = 50989356939643922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159670501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3471076 + ... + 3471121.

It is an arithmetic number, because the mean of its divisors is an integer number (41653188).

Almost surely, 2^159670531 is an apocalyptic number.

159670531 is a deficient number, since it is larger than the sum of its proper divisors (6942221).

159670531 is an equidigital number, since it uses as much as digits as its factorization.

159670531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6942220.

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 159670531 is about 12636.0805236434. The cubic root of 159670531 is about 542.5106353964.

It can be divided in two parts, 1596 and 70531, that added together give a palindrome (72127).

The spelling of 159670531 in words is "one hundred fifty-nine million, six hundred seventy thousand, five hundred thirty-one".