42115719 has 8 divisors (see below), whose sum is σ = 56207232. Its totient is φ = 28050680.

The previous prime is 42115699. The next prime is 42115727. The reversal of 42115719 is 91751124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42115719 - 2⁹ = 42115207 is a prime.

It is a super-2 number, since 2×42115719² = 3547467573773922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42115789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2547 + ... + 9524.

It is an arithmetic number, because the mean of its divisors is an integer number (7025904).

Almost surely, 2^42115719 is an apocalyptic number.

42115719 is a deficient number, since it is larger than the sum of its proper divisors (14091513).

42115719 is a wasteful number, since it uses less digits than its factorization.

42115719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13237.

The product of its digits is 2520, while the sum is 30.

The square root of 42115719 is about 6489.6624719626. The cubic root of 42115719 is about 347.9216116874.

The spelling of 42115719 in words is "forty-two million, one hundred fifteen thousand, seven hundred nineteen".