190348969 has 2 divisors, whose sum is σ = 190348970. Its totient is φ = 190348968.

The previous prime is 190348967. The next prime is 190348993. The reversal of 190348969 is 969843091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171295744 + 19053225 = 13088^2 + 4365^2 .

It is a cyclic number.

It is not a de Polignac number, because 190348969 - 2¹ = 190348967 is a prime.

It is a super-2 number, since 2×190348969² = 72465459998725922, which contains 22 as substring.

Together with 190348967, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (190348967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95174484 + 95174485.

It is an arithmetic number, because the mean of its divisors is an integer number (95174485).

Almost surely, 2^190348969 is an apocalyptic number.

It is an amenable number.

190348969 is a deficient number, since it is larger than the sum of its proper divisors (1).

190348969 is an equidigital number, since it uses as much as digits as its factorization.

190348969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 190348969 is about 13796.7013811273. The cubic root of 190348969 is about 575.2414552412.

The spelling of 190348969 in words is "one hundred ninety million, three hundred forty-eight thousand, nine hundred sixty-nine".