190093973 has 2 divisors, whose sum is σ = 190093974. Its totient is φ = 190093972.

The previous prime is 190093963. The next prime is 190093979. The reversal of 190093973 is 379390091.

190093973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148401124 + 41692849 = 12182^2 + 6457^2 .

It is a cyclic number.

It is not a de Polignac number, because 190093973 - 2¹² = 190089877 is a prime.

It is a super-2 number, since 2×190093973² = 72271437141849458, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 190093973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190093979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95046986 + 95046987.

It is an arithmetic number, because the mean of its divisors is an integer number (95046987).

Almost surely, 2^190093973 is an apocalyptic number.

It is an amenable number.

190093973 is a deficient number, since it is larger than the sum of its proper divisors (1).

190093973 is an equidigital number, since it uses as much as digits as its factorization.

190093973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45927, while the sum is 41.

The square root of 190093973 is about 13787.4570896884. The cubic root of 190093973 is about 574.9844714143.

The spelling of 190093973 in words is "one hundred ninety million, ninety-three thousand, nine hundred seventy-three".