190091063 has 2 divisors, whose sum is σ = 190091064. Its totient is φ = 190091062.

The previous prime is 190091017. The next prime is 190091081. The reversal of 190091063 is 360190091.

It is a strong prime.

It is an emirp because it is prime and its reverse (360190091) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190091063 is a prime.

It is a super-2 number, since 2×190091063² = 72269224464939938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190091963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95045531 + 95045532.

It is an arithmetic number, because the mean of its divisors is an integer number (95045532).

Almost surely, 2^190091063 is an apocalyptic number.

190091063 is a deficient number, since it is larger than the sum of its proper divisors (1).

190091063 is an equidigital number, since it uses as much as digits as its factorization.

190091063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 190091063 is about 13787.3515585844. The cubic root of 190091063 is about 574.9815374034.

The spelling of 190091063 in words is "one hundred ninety million, ninety-one thousand, sixty-three".