51246123 has 4 divisors (see below), whose sum is σ = 68328168. Its totient is φ = 34164080.

The previous prime is 51246119. The next prime is 51246127. The reversal of 51246123 is 32164215.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (51246119) and next prime (51246127).

It is a cyclic number.

It is not a de Polignac number, because 51246123 - 2² = 51246119 is a prime.

It is a super-2 number, since 2×51246123² = 5252330245062258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51246093 and 51246102.

It is not an unprimeable number, because it can be changed into a prime (51246127) 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, 8541018 + ... + 8541023.

It is an arithmetic number, because the mean of its divisors is an integer number (17082042).

Almost surely, 2^51246123 is an apocalyptic number.

51246123 is a deficient number, since it is larger than the sum of its proper divisors (17082045).

51246123 is a wasteful number, since it uses less digits than its factorization.

51246123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17082044.

The product of its digits is 1440, while the sum is 24.

The square root of 51246123 is about 7158.6397450912. The cubic root of 51246123 is about 371.4385753082.

The spelling of 51246123 in words is "fifty-one million, two hundred forty-six thousand, one hundred twenty-three".