5112121 has 27 divisors (see below), whose sum is σ = 6667119. Its totient is φ = 3907008.

The previous prime is 5112119. The next prime is 5112127. The reversal of 5112121 is 1212115.

The square root of 5112121 is 2261.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3980025 + 1132096 = 1995^2 + 1064^2 .

It is not a de Polignac number, because 5112121 - 2¹ = 5112119 is a prime.

It is a super-2 number, since 2×5112121² = 52267562237282, which contains 22 as substring.

5112121 is a modest number, since divided by 2121 gives 511 as remainder.

It is not an unprimeable number, because it can be changed into a prime (5112127) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 269050 + ... + 269068.

Almost surely, 2^5112121 is an apocalyptic number.

5112121 is the 2261-st square number.

5112121 is the 1131-st centered octagonal number.

It is an amenable number.

5112121 is a deficient number, since it is larger than the sum of its proper divisors (1554998).

5112121 is a wasteful number, since it uses less digits than its factorization.

5112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86 (or 43 counting only the distinct ones).

The product of its digits is 20, while the sum is 13.

The cubic root of 5112121 is about 172.2663194437.

Adding to 5112121 its reverse (1212115), we get a palindrome (6324236).

The spelling of 5112121 in words is "five million, one hundred twelve thousand, one hundred twenty-one".