5131289 has 8 divisors (see below), whose sum is σ = 5400000. Its totient is φ = 4868752.

The previous prime is 5131283. The next prime is 5131307. The reversal of 5131289 is 9821315.

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

It is a de Polignac number, because none of the positive numbers 2^k-5131289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5131283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212 + ... + 3210.

It is an arithmetic number, because the mean of its divisors is an integer number (675000).

Almost surely, 2^5131289 is an apocalyptic number.

5131289 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

5131289 is a deficient number, since it is larger than the sum of its proper divisors (268711).

5131289 is a wasteful number, since it uses less digits than its factorization.

5131289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087.

The product of its digits is 2160, while the sum is 29.

The square root of 5131289 is about 2265.2348664101. The cubic root of 5131289 is about 172.4813562431.

The spelling of 5131289 in words is "five million, one hundred thirty-one thousand, two hundred eighty-nine".