5131690 has 8 divisors (see below), whose sum is σ = 9237060. Its totient is φ = 2052672.

The previous prime is 5131673. The next prime is 5131697. The reversal of 5131690 is 961315.

It can be written as a sum of positive squares in 2 ways, for example, as 4157521 + 974169 = 2039^2 + 987^2 .

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

It is a super-2 number, since 2×5131690² = 52668484512200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5131697) 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, 256575 + ... + 256594.

Almost surely, 2^5131690 is an apocalyptic number.

5131690 is a deficient number, since it is larger than the sum of its proper divisors (4105370).

5131690 is a wasteful number, since it uses less digits than its factorization.

5131690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513176.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 5131690 is about 2265.3233764741. The cubic root of 5131690 is about 172.4858491507.

The spelling of 5131690 in words is "five million, one hundred thirty-one thousand, six hundred ninety".