444102137 has 2 divisors, whose sum is σ = 444102138. Its totient is φ = 444102136.

The previous prime is 444102133. The next prime is 444102161. The reversal of 444102137 is 731201444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 277588921 + 166513216 = 16661^2 + 12904^2 .

It is a cyclic number.

It is not a de Polignac number, because 444102137 - 2² = 444102133 is a prime.

It is not a weakly prime, because it can be changed into another prime (444102133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222051068 + 222051069.

It is an arithmetic number, because the mean of its divisors is an integer number (222051069).

Almost surely, 2^444102137 is an apocalyptic number.

It is an amenable number.

444102137 is a deficient number, since it is larger than the sum of its proper divisors (1).

444102137 is an equidigital number, since it uses as much as digits as its factorization.

444102137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 444102137 is about 21073.7309700964. The cubic root of 444102137 is about 762.9468559447.

The spelling of 444102137 in words is "four hundred forty-four million, one hundred two thousand, one hundred thirty-seven".