190101971 has 2 divisors, whose sum is σ = 190101972. Its totient is φ = 190101970.

The previous prime is 190101941. The next prime is 190101979. The reversal of 190101971 is 179101091.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 190101971 - 2⁶ = 190101907 is a prime.

It is a super-2 number, since 2×190101971² = 72277518756169682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (190101979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95050985 + 95050986.

It is an arithmetic number, because the mean of its divisors is an integer number (95050986).

Almost surely, 2^190101971 is an apocalyptic number.

190101971 is a deficient number, since it is larger than the sum of its proper divisors (1).

190101971 is an equidigital number, since it uses as much as digits as its factorization.

190101971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567, while the sum is 29.

The square root of 190101971 is about 13787.7471328713. The cubic root of 190101971 is about 574.9925352528.

The spelling of 190101971 in words is "one hundred ninety million, one hundred one thousand, nine hundred seventy-one".