1940161423 has 2 divisors, whose sum is σ = 1940161424. Its totient is φ = 1940161422.

The previous prime is 1940161417. The next prime is 1940161427. The reversal of 1940161423 is 3241610491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1940161423 - 2¹³ = 1940153231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1940161427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970080711 + 970080712.

It is an arithmetic number, because the mean of its divisors is an integer number (970080712).

Almost surely, 2^1940161423 is an apocalyptic number.

1940161423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1940161423 is an equidigital number, since it uses as much as digits as its factorization.

1940161423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1940161423 is about 44047.2635131855. The cubic root of 1940161423 is about 1247.2282955729.

The spelling of 1940161423 in words is "one billion, nine hundred forty million, one hundred sixty-one thousand, four hundred twenty-three".