19012093 has 2 divisors, whose sum is σ = 19012094. Its totient is φ = 19012092.

The previous prime is 19012087. The next prime is 19012153. The reversal of 19012093 is 39021091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13380964 + 5631129 = 3658^2 + 2373^2 .

It is a cyclic number.

It is not a de Polignac number, because 19012093 - 2¹⁷ = 18881021 is a prime.

It is a super-2 number, since 2×19012093² = 722919360481298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19012013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9506046 + 9506047.

It is an arithmetic number, because the mean of its divisors is an integer number (9506047).

Almost surely, 2^19012093 is an apocalyptic number.

It is an amenable number.

19012093 is a deficient number, since it is larger than the sum of its proper divisors (1).

19012093 is an equidigital number, since it uses as much as digits as its factorization.

19012093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 19012093 is about 4360.2858851227. The cubic root of 19012093 is about 266.8967651133.

It can be divided in two parts, 1901 and 2093, that multiplied together give a palindrome (3978793).

The spelling of 19012093 in words is "nineteen million, twelve thousand, ninety-three".