42160919 has 2 divisors, whose sum is σ = 42160920. Its totient is φ = 42160918.

The previous prime is 42160913. The next prime is 42160933. The reversal of 42160919 is 91906124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42160919 - 2⁴ = 42160903 is a prime.

It is a super-2 number, since 2×42160919² = 3555086181849122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42160913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21080459 + 21080460.

It is an arithmetic number, because the mean of its divisors is an integer number (21080460).

Almost surely, 2^42160919 is an apocalyptic number.

42160919 is a deficient number, since it is larger than the sum of its proper divisors (1).

42160919 is an equidigital number, since it uses as much as digits as its factorization.

42160919 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 42160919 is about 6493.1439996353. The cubic root of 42160919 is about 348.0460342282.

The spelling of 42160919 in words is "forty-two million, one hundred sixty thousand, nine hundred nineteen".