163131002 has 8 divisors (see below), whose sum is σ = 251310036. Its totient is φ = 79360992.

The previous prime is 163130993. The next prime is 163131013. The reversal of 163131002 is 200131361.

It can be written as a sum of positive squares in 2 ways, for example, as 115369081 + 47761921 = 10741^2 + 6911^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×163131002² = 53223447627048008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1102163 + ... + 1102310.

Almost surely, 2^163131002 is an apocalyptic number.

163131002 is a deficient number, since it is larger than the sum of its proper divisors (88179034).

163131002 is a wasteful number, since it uses less digits than its factorization.

163131002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2204512.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 163131002 is about 12772.2747386673. The cubic root of 163131002 is about 546.4018585763.

Adding to 163131002 its reverse (200131361), we get a palindrome (363262363).

The spelling of 163131002 in words is "one hundred sixty-three million, one hundred thirty-one thousand, two".