31141199 has 2 divisors, whose sum is σ = 31141200. Its totient is φ = 31141198.

The previous prime is 31141193. The next prime is 31141217. The reversal of 31141199 is 99114113.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31141199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31141193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15570599 + 15570600.

It is an arithmetic number, because the mean of its divisors is an integer number (15570600).

Almost surely, 2^31141199 is an apocalyptic number.

31141199 is a deficient number, since it is larger than the sum of its proper divisors (1).

31141199 is an equidigital number, since it uses as much as digits as its factorization.

31141199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 29.

The square root of 31141199 is about 5580.4300013529. The cubic root of 31141199 is about 314.6142889624.

The spelling of 31141199 in words is "thirty-one million, one hundred forty-one thousand, one hundred ninety-nine".