1912159 has 2 divisors, whose sum is σ = 1912160. Its totient is φ = 1912158.

The previous prime is 1912147. The next prime is 1912193. The reversal of 1912159 is 9512191.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1912159 - 2¹⁵ = 1879391 is a prime.

It is an Ulam number.

1912159 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1912129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 956079 + 956080.

It is an arithmetic number, because the mean of its divisors is an integer number (956080).

2^1912159 is an apocalyptic number.

1912159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1912159 is an equidigital number, since it uses as much as digits as its factorization.

1912159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 810, while the sum is 28.

The square root of 1912159 is about 1382.8083742876. The cubic root of 1912159 is about 124.1198762686.

The spelling of 1912159 in words is "one million, nine hundred twelve thousand, one hundred fifty-nine".