190540163 has 4 divisors (see below), whose sum is σ = 207862008. Its totient is φ = 173218320.

The previous prime is 190540139. The next prime is 190540169. The reversal of 190540163 is 361045091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361045091 = 11 ⋅32822281.

It is not a de Polignac number, because 190540163 - 2⁸ = 190539907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190540169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8660906 + ... + 8660927.

It is an arithmetic number, because the mean of its divisors is an integer number (51965502).

Almost surely, 2^190540163 is an apocalyptic number.

190540163 is a deficient number, since it is larger than the sum of its proper divisors (17321845).

190540163 is a wasteful number, since it uses less digits than its factorization.

190540163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17321844.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 190540163 is about 13803.6286171427. The cubic root of 190540163 is about 575.4339891825.

The spelling of 190540163 in words is "one hundred ninety million, five hundred forty thousand, one hundred sixty-three".