51123234 has 16 divisors (see below), whose sum is σ = 103152672. Its totient is φ = 16890048.

The previous prime is 51123221. The next prime is 51123253. The reversal of 51123234 is 43232115.

It is a super-2 number, since 2×51123234² = 5227170109237512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51123234.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37024 + ... + 38379.

It is an arithmetic number, because the mean of its divisors is an integer number (6447042).

Almost surely, 2^51123234 is an apocalyptic number.

51123234 is an abundant number, since it is smaller than the sum of its proper divisors (52029438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51123234 is a wasteful number, since it uses less digits than its factorization.

51123234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75521.

The product of its digits is 720, while the sum is 21.

The square root of 51123234 is about 7150.0513284871. The cubic root of 51123234 is about 371.1414325035.

Adding to 51123234 its reverse (43232115), we get a palindrome (94355349).

The spelling of 51123234 in words is "fifty-one million, one hundred twenty-three thousand, two hundred thirty-four".