201090499 has 2 divisors, whose sum is σ = 201090500. Its totient is φ = 201090498.

The previous prime is 201090493. The next prime is 201090563. The reversal of 201090499 is 994090102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201090499 is a prime.

It is not a weakly prime, because it can be changed into another prime (201090493) 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, 100545249 + 100545250.

It is an arithmetic number, because the mean of its divisors is an integer number (100545250).

Almost surely, 2^201090499 is an apocalyptic number.

201090499 is a deficient number, since it is larger than the sum of its proper divisors (1).

201090499 is an equidigital number, since it uses as much as digits as its factorization.

201090499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 201090499 is about 14180.6381732276. The cubic root of 201090499 is about 585.8645011646.

The spelling of 201090499 in words is "two hundred one million, ninety thousand, four hundred ninety-nine".