244152191 has 2 divisors, whose sum is σ = 244152192. Its totient is φ = 244152190.

The previous prime is 244152137. The next prime is 244152197. The reversal of 244152191 is 191251442.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244152191 is a prime.

It is a super-2 number, since 2×244152191² = 119220584740200962, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244152197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122076095 + 122076096.

It is an arithmetic number, because the mean of its divisors is an integer number (122076096).

Almost surely, 2^244152191 is an apocalyptic number.

244152191 is a deficient number, since it is larger than the sum of its proper divisors (1).

244152191 is an equidigital number, since it uses as much as digits as its factorization.

244152191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 29.

The square root of 244152191 is about 15625.3701076167. The cubic root of 244152191 is about 625.0098694975.

The spelling of 244152191 in words is "two hundred forty-four million, one hundred fifty-two thousand, one hundred ninety-one".