190120493 has 2 divisors, whose sum is σ = 190120494. Its totient is φ = 190120492.

The previous prime is 190120459. The next prime is 190120561. The reversal of 190120493 is 394021091.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105719524 + 84400969 = 10282^2 + 9187^2 .

It is an emirp because it is prime and its reverse (394021091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190120493 - 2⁸ = 190120237 is a prime.

It is a super-2 number, since 2×190120493² = 72291603717126098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190120453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95060246 + 95060247.

It is an arithmetic number, because the mean of its divisors is an integer number (95060247).

Almost surely, 2^190120493 is an apocalyptic number.

It is an amenable number.

190120493 is a deficient number, since it is larger than the sum of its proper divisors (1).

190120493 is an equidigital number, since it uses as much as digits as its factorization.

190120493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 190120493 is about 13788.4187998479. The cubic root of 190120493 is about 575.0112088552.

The spelling of 190120493 in words is "one hundred ninety million, one hundred twenty thousand, four hundred ninety-three".