442244012143237 has 2 divisors, whose sum is σ = 442244012143238. Its totient is φ = 442244012143236.

The previous prime is 442244012143081. The next prime is 442244012143291. The reversal of 442244012143237 is 732341210442244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 258189911387521 + 184054100755716 = 16068289^2 + 13566654^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442244012143237 is a prime.

It is a super-2 number, since 2×442244012143237² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 442244012143193 and 442244012143202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442244012143837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221122006071618 + 221122006071619.

It is an arithmetic number, because the mean of its divisors is an integer number (221122006071619).

Almost surely, 2^{442244012143237} is an apocalyptic number.

It is an amenable number.

442244012143237 is a deficient number, since it is larger than the sum of its proper divisors (1).

442244012143237 is an equidigital number, since it uses as much as digits as its factorization.

442244012143237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1032192, while the sum is 43.

The spelling of 442244012143237 in words is "four hundred forty-two trillion, two hundred forty-four billion, twelve million, one hundred forty-three thousand, two hundred thirty-seven".