631056199 has 2 divisors, whose sum is σ = 631056200. Its totient is φ = 631056198.

The previous prime is 631056193. The next prime is 631056203. The reversal of 631056199 is 991650136.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 631056199 - 2¹⁵ = 631023431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (631056193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315528099 + 315528100.

It is an arithmetic number, because the mean of its divisors is an integer number (315528100).

Almost surely, 2^631056199 is an apocalyptic number.

631056199 is a deficient number, since it is larger than the sum of its proper divisors (1).

631056199 is an equidigital number, since it uses as much as digits as its factorization.

631056199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 631056199 is about 25120.8319726875. The cubic root of 631056199 is about 857.7406890929.

The spelling of 631056199 in words is "six hundred thirty-one million, fifty-six thousand, one hundred ninety-nine".