444161951 has 2 divisors, whose sum is σ = 444161952. Its totient is φ = 444161950.

The previous prime is 444161929. The next prime is 444161953. The reversal of 444161951 is 159161444.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 444161951 - 2²⁶ = 377053087 is a prime.

It is a super-2 number, since 2×444161951² = 394559677432252802, which contains 22 as substring.

Together with 444161953, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444161953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222080975 + 222080976.

It is an arithmetic number, because the mean of its divisors is an integer number (222080976).

Almost surely, 2^444161951 is an apocalyptic number.

444161951 is a deficient number, since it is larger than the sum of its proper divisors (1).

444161951 is an equidigital number, since it uses as much as digits as its factorization.

444161951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 35.

The square root of 444161951 is about 21075.1500825024. The cubic root of 444161951 is about 762.9811069655.

The spelling of 444161951 in words is "four hundred forty-four million, one hundred sixty-one thousand, nine hundred fifty-one".