1942000691 has 2 divisors, whose sum is σ = 1942000692. Its totient is φ = 1942000690.

The previous prime is 1942000681. The next prime is 1942000693. The reversal of 1942000691 is 1960002491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1942000691 - 2¹⁰ = 1941999667 is a prime.

It is a Sophie Germain prime.

Together with 1942000693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1942000693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 971000345 + 971000346.

It is an arithmetic number, because the mean of its divisors is an integer number (971000346).

Almost surely, 2^1942000691 is an apocalyptic number.

1942000691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1942000691 is an equidigital number, since it uses as much as digits as its factorization.

1942000691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1942000691 is about 44068.1369131939. The cubic root of 1942000691 is about 1247.6222941596.

The spelling of 1942000691 in words is "one billion, nine hundred forty-two million, six hundred ninety-one", and thus it is an aban number.