19114861 has 2 divisors, whose sum is σ = 19114862. Its totient is φ = 19114860.

The previous prime is 19114841. The next prime is 19114933. The reversal of 19114861 is 16841191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17589636 + 1525225 = 4194^2 + 1235^2 .

It is a cyclic number.

It is not a de Polignac number, because 19114861 - 2¹⁵ = 19082093 is a prime.

It is a super-2 number, since 2×19114861² = 730755822098642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19114811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9557430 + 9557431.

It is an arithmetic number, because the mean of its divisors is an integer number (9557431).

Almost surely, 2^19114861 is an apocalyptic number.

It is an amenable number.

19114861 is a deficient number, since it is larger than the sum of its proper divisors (1).

19114861 is an equidigital number, since it uses as much as digits as its factorization.

19114861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 31.

The square root of 19114861 is about 4372.0545513523. The cubic root of 19114861 is about 267.3767959730.

The spelling of 19114861 in words is "nineteen million, one hundred fourteen thousand, eight hundred sixty-one".