5131161 has 32 divisors (see below), whose sum is σ = 9204480. Its totient is φ = 2757888.

The previous prime is 5131157. The next prime is 5131163. The reversal of 5131161 is 1611315.

It is not a de Polignac number, because 5131161 - 2² = 5131157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5131163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2415 + ... + 4011.

It is an arithmetic number, because the mean of its divisors is an integer number (287640).

Almost surely, 2^5131161 is an apocalyptic number.

5131161 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

5131161 is a deficient number, since it is larger than the sum of its proper divisors (4073319).

5131161 is a wasteful number, since it uses less digits than its factorization.

5131161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630 (or 1624 counting only the distinct ones).

The product of its digits is 90, while the sum is 18.

The square root of 5131161 is about 2265.2066130929. The cubic root of 5131161 is about 172.4799220488.

Adding to 5131161 its reverse (1611315), we get a palindrome (6742476).

The spelling of 5131161 in words is "five million, one hundred thirty-one thousand, one hundred sixty-one".