670131500 has 48 divisors (see below), whose sum is σ = 1549679040. Its totient is φ = 252281600.

The previous prime is 670131487. The next prime is 670131509. The reversal of 670131500 is 5131076.

It is not an unprimeable number, because it can be changed into a prime (670131509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30920 + ... + 47919.

It is an arithmetic number, because the mean of its divisors is an integer number (32284980).

Almost surely, 2^670131500 is an apocalyptic number.

It is an amenable number.

670131500 is an abundant number, since it is smaller than the sum of its proper divisors (879547540).

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

670131500 is a wasteful number, since it uses less digits than its factorization.

670131500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78875 (or 78863 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 670131500 is about 25886.8982305722. The cubic root of 670131500 is about 875.0912557885.

Adding to 670131500 its reverse (5131076), we get a palindrome (675262576).

The spelling of 670131500 in words is "six hundred seventy million, one hundred thirty-one thousand, five hundred".