42015419 has 2 divisors, whose sum is σ = 42015420. Its totient is φ = 42015418.

The previous prime is 42015383. The next prime is 42015433. The reversal of 42015419 is 91451024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42015419 - 2⁸ = 42015163 is a prime.

It is a super-2 number, since 2×42015419² = 3530590867491122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42015469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21007709 + 21007710.

It is an arithmetic number, because the mean of its divisors is an integer number (21007710).

Almost surely, 2^42015419 is an apocalyptic number.

42015419 is a deficient number, since it is larger than the sum of its proper divisors (1).

42015419 is an equidigital number, since it uses as much as digits as its factorization.

42015419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 42015419 is about 6481.9301909231. The cubic root of 42015419 is about 347.6451964707.

The spelling of 42015419 in words is "forty-two million, fifteen thousand, four hundred nineteen".