190109377 has 2 divisors, whose sum is σ = 190109378. Its totient is φ = 190109376.

The previous prime is 190109363. The next prime is 190109399. The reversal of 190109377 is 773901091.

190109377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140209281 + 49900096 = 11841^2 + 7064^2 .

It is an emirp because it is prime and its reverse (773901091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190109377 - 2¹¹ = 190107329 is a prime.

It is a super-2 number, since 2×190109377² = 72283150446656258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (190109677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95054688 + 95054689.

It is an arithmetic number, because the mean of its divisors is an integer number (95054689).

Almost surely, 2^190109377 is an apocalyptic number.

It is an amenable number.

190109377 is a deficient number, since it is larger than the sum of its proper divisors (1).

190109377 is an equidigital number, since it uses as much as digits as its factorization.

190109377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11907, while the sum is 37.

The square root of 190109377 is about 13788.0157020508. The cubic root of 190109377 is about 575.0000020164. Note that the first 5 decimals are identical.

The spelling of 190109377 in words is "one hundred ninety million, one hundred nine thousand, three hundred seventy-seven".