190154201 has 2 divisors, whose sum is σ = 190154202. Its totient is φ = 190154200.

The previous prime is 190154143. The next prime is 190154203. The reversal of 190154201 is 102451091.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189475225 + 678976 = 13765^2 + 824^2 .

It is an emirp because it is prime and its reverse (102451091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190154201 - 2¹⁴ = 190137817 is a prime.

Together with 190154203, 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 (190154203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95077100 + 95077101.

It is an arithmetic number, because the mean of its divisors is an integer number (95077101).

Almost surely, 2^190154201 is an apocalyptic number.

It is an amenable number.

190154201 is a deficient number, since it is larger than the sum of its proper divisors (1).

190154201 is an equidigital number, since it uses as much as digits as its factorization.

190154201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 190154201 is about 13789.6410758221. The cubic root of 190154201 is about 575.0451896431.

The spelling of 190154201 in words is "one hundred ninety million, one hundred fifty-four thousand, two hundred one".