42715619 has 2 divisors, whose sum is σ = 42715620. Its totient is φ = 42715618.

The previous prime is 42715609. The next prime is 42715633. The reversal of 42715619 is 91651724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42715619 - 2¹² = 42711523 is a prime.

It is a super-2 number, since 2×42715619² = 3649248213106322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42715609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21357809 + 21357810.

It is an arithmetic number, because the mean of its divisors is an integer number (21357810).

Almost surely, 2^42715619 is an apocalyptic number.

42715619 is a deficient number, since it is larger than the sum of its proper divisors (1).

42715619 is an equidigital number, since it uses as much as digits as its factorization.

42715619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 35.

The square root of 42715619 is about 6535.7187056972. The cubic root of 42715619 is about 349.5657717005.

It can be divided in two parts, 42715 and 619, that added together give a palindrome (43334).

The spelling of 42715619 in words is "forty-two million, seven hundred fifteen thousand, six hundred nineteen".