42705119 has 2 divisors, whose sum is σ = 42705120. Its totient is φ = 42705118.

The previous prime is 42705107. The next prime is 42705127. The reversal of 42705119 is 91150724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42705119 - 2⁸ = 42704863 is a prime.

It is a super-2 number, since 2×42705119² = 3647454377608322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 42705091 and 42705100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42705419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21352559 + 21352560.

It is an arithmetic number, because the mean of its divisors is an integer number (21352560).

Almost surely, 2^42705119 is an apocalyptic number.

42705119 is a deficient number, since it is larger than the sum of its proper divisors (1).

42705119 is an equidigital number, since it uses as much as digits as its factorization.

42705119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 42705119 is about 6534.9153781820. The cubic root of 42705119 is about 349.5371268982.

It can be divided in two parts, 42705 and 119, that added together give a palindrome (42824).

The spelling of 42705119 in words is "forty-two million, seven hundred five thousand, one hundred nineteen".