190140859 has 2 divisors, whose sum is σ = 190140860. Its totient is φ = 190140858.

The previous prime is 190140851. The next prime is 190140877. The reversal of 190140859 is 958041091.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 190140859 - 2³ = 190140851 is a prime.

It is a super-2 number, since 2×190140859² = 72307092522515762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (190140851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95070429 + 95070430.

It is an arithmetic number, because the mean of its divisors is an integer number (95070430).

Almost surely, 2^190140859 is an apocalyptic number.

190140859 is a deficient number, since it is larger than the sum of its proper divisors (1).

190140859 is an equidigital number, since it uses as much as digits as its factorization.

190140859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 190140859 is about 13789.1572983993. The cubic root of 190140859 is about 575.0317401509.

The spelling of 190140859 in words is "one hundred ninety million, one hundred forty thousand, eight hundred fifty-nine".