131005008 has 60 divisors (see below), whose sum is σ = 378471808. Its totient is φ = 42258240.

The previous prime is 131004947. The next prime is 131005031. The reversal of 131005008 is 800500131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10210 + ... + 19137.

Almost surely, 2^131005008 is an apocalyptic number.

131005008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

131005008 is an abundant number, since it is smaller than the sum of its proper divisors (247466800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131005008 is a wasteful number, since it uses less digits than its factorization.

131005008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29392 (or 29383 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 131005008 is about 11445.7419156645. The cubic root of 131005008 is about 507.8817795871.

Adding to 131005008 its reverse (800500131), we get a palindrome (931505139).

The spelling of 131005008 in words is "one hundred thirty-one million, five thousand, eight".