5161251 has 12 divisors (see below), whose sum is σ = 7311512. Its totient is φ = 3237888.

The previous prime is 5161249. The next prime is 5161253. The reversal of 5161251 is 1521615.

It is an interprime number because it is at equal distance from previous prime (5161249) and next prime (5161253).

It is not a de Polignac number, because 5161251 - 2¹ = 5161249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5161253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2110 + ... + 3843.

Almost surely, 2^5161251 is an apocalyptic number.

5161251 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

5161251 is a deficient number, since it is larger than the sum of its proper divisors (2150261).

5161251 is a wasteful number, since it uses less digits than its factorization.

5161251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5990 (or 5973 counting only the distinct ones).

The product of its digits is 300, while the sum is 21.

The square root of 5161251 is about 2271.8386826533. The cubic root of 5161251 is about 172.8164156751.

Adding to 5161251 its reverse (1521615), we get a palindrome (6682866).

The spelling of 5161251 in words is "five million, one hundred sixty-one thousand, two hundred fifty-one".