190969501 has 2 divisors, whose sum is σ = 190969502. Its totient is φ = 190969500.

The previous prime is 190969451. The next prime is 190969511. The reversal of 190969501 is 105969091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174372025 + 16597476 = 13205^2 + 4074^2 .

It is an emirp because it is prime and its reverse (105969091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190969501 - 2⁹ = 190968989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190969511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95484750 + 95484751.

It is an arithmetic number, because the mean of its divisors is an integer number (95484751).

Almost surely, 2^190969501 is an apocalyptic number.

It is an amenable number.

190969501 is a deficient number, since it is larger than the sum of its proper divisors (1).

190969501 is an equidigital number, since it uses as much as digits as its factorization.

190969501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21870, while the sum is 40.

The square root of 190969501 is about 13819.1715019389. The cubic root of 190969501 is about 575.8658672447.

The spelling of 190969501 in words is "one hundred ninety million, nine hundred sixty-nine thousand, five hundred one".