190122807 has 16 divisors (see below), whose sum is σ = 302307840. Its totient is φ = 103917792.

The previous prime is 190122767. The next prime is 190122833. The reversal of 190122807 is 708221091.

It is not a de Polignac number, because 190122807 - 2¹⁰ = 190121783 is a prime.

It is a super-2 number, since 2×190122807² = 72293363483118498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190122847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196332 + ... + 197297.

It is an arithmetic number, because the mean of its divisors is an integer number (18894240).

Almost surely, 2^190122807 is an apocalyptic number.

190122807 is a deficient number, since it is larger than the sum of its proper divisors (112185033).

190122807 is a wasteful number, since it uses less digits than its factorization.

190122807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393662.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 190122807 is about 13788.5027105919. The cubic root of 190122807 is about 575.0135417101.

Adding to 190122807 its reverse (708221091), we get a palindrome (898343898).

The spelling of 190122807 in words is "one hundred ninety million, one hundred twenty-two thousand, eight hundred seven".