131217002 has 36 divisors (see below), whose sum is σ = 241710210. Its totient is φ = 53261712.

The previous prime is 131216993. The next prime is 131217049. The reversal of 131217002 is 200712131.

It can be written as a sum of positive squares in only one way, i.e., 121859521 + 9357481 = 11039^2 + 3059^2 .

It is a super-2 number, since 2×131217002² = 34435803227736008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 33524 + ... + 37232.

Almost surely, 2^131217002 is an apocalyptic number.

131217002 is a deficient number, since it is larger than the sum of its proper divisors (110493208).

131217002 is a wasteful number, since it uses less digits than its factorization.

131217002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3763 (or 3737 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 131217002 is about 11454.9989960715. The cubic root of 131217002 is about 508.1555855717.

Adding to 131217002 its reverse (200712131), we get a palindrome (331929133).

The spelling of 131217002 in words is "one hundred thirty-one million, two hundred seventeen thousand, two".