1840974613 has 2 divisors, whose sum is σ = 1840974614. Its totient is φ = 1840974612.

The previous prime is 1840974539. The next prime is 1840974623. The reversal of 1840974613 is 3164790481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1821411684 + 19562929 = 42678^2 + 4423^2 .

It is a cyclic number.

It is not a de Polignac number, because 1840974613 - 2⁹ = 1840974101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1840974613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1840974623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 920487306 + 920487307.

It is an arithmetic number, because the mean of its divisors is an integer number (920487307).

Almost surely, 2^1840974613 is an apocalyptic number.

It is an amenable number.

1840974613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1840974613 is an equidigital number, since it uses as much as digits as its factorization.

1840974613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 1840974613 is about 42906.5800664653. The cubic root of 1840974613 is about 1225.6014512563.

The spelling of 1840974613 in words is "one billion, eight hundred forty million, nine hundred seventy-four thousand, six hundred thirteen".