190039427 has 2 divisors, whose sum is σ = 190039428. Its totient is φ = 190039426.

The previous prime is 190039417. The next prime is 190039433. The reversal of 190039427 is 724930091.

190039427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 190039427 - 2⁴ = 190039411 is a prime.

It is a super-2 number, since 2×190039427² = 72229967628976658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (190039417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95019713 + 95019714.

It is an arithmetic number, because the mean of its divisors is an integer number (95019714).

Almost surely, 2^190039427 is an apocalyptic number.

190039427 is a deficient number, since it is larger than the sum of its proper divisors (1).

190039427 is an equidigital number, since it uses as much as digits as its factorization.

190039427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 190039427 is about 13785.4788455099. The cubic root of 190039427 is about 574.9294703662.

The spelling of 190039427 in words is "one hundred ninety million, thirty-nine thousand, four hundred twenty-seven".