190000910971 has 2 divisors, whose sum is σ = 190000910972. Its totient is φ = 190000910970.

The previous prime is 190000910927. The next prime is 190000910977. The reversal of 190000910971 is 179019000091.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 190000910971 - 2⁹ = 190000910459 is a prime.

It is a super-2 number, since 2×190000910971² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 190000910971.

It is not a weakly prime, because it can be changed into another prime (190000910977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95000455485 + 95000455486.

It is an arithmetic number, because the mean of its divisors is an integer number (95000455486).

Almost surely, 2^190000910971 is an apocalyptic number.

190000910971 is a deficient number, since it is larger than the sum of its proper divisors (1).

190000910971 is an equidigital number, since it uses as much as digits as its factorization.

190000910971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5103, while the sum is 37.

The spelling of 190000910971 in words is "one hundred ninety billion, nine hundred ten thousand, nine hundred seventy-one".