123427237 has 2 divisors, whose sum is σ = 123427238. Its totient is φ = 123427236.

The previous prime is 123427231. The next prime is 123427289. The reversal of 123427237 is 732724321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106378596 + 17048641 = 10314^2 + 4129^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123427237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123427199 and 123427208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123427231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61713618 + 61713619.

It is an arithmetic number, because the mean of its divisors is an integer number (61713619).

Almost surely, 2^123427237 is an apocalyptic number.

It is an amenable number.

123427237 is a deficient number, since it is larger than the sum of its proper divisors (1).

123427237 is an equidigital number, since it uses as much as digits as its factorization.

123427237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 31.

The square root of 123427237 is about 11109.7811409586. The cubic root of 123427237 is about 497.8941257055.

The spelling of 123427237 in words is "one hundred twenty-three million, four hundred twenty-seven thousand, two hundred thirty-seven".