74142719 has 8 divisors (see below), whose sum is σ = 86801568. Its totient is φ = 62000640.

The previous prime is 74142713. The next prime is 74142721. The reversal of 74142719 is 91724147.

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 74142719 - 2¹⁶ = 74077183 is a prime.

It is a super-2 number, since 2×74142719² = 10994285561425922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74142713) 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, 128882 + ... + 129455.

It is an arithmetic number, because the mean of its divisors is an integer number (10850196).

Almost surely, 2^74142719 is an apocalyptic number.

74142719 is a deficient number, since it is larger than the sum of its proper divisors (12658849).

74142719 is a wasteful number, since it uses less digits than its factorization.

74142719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258385.

The product of its digits is 14112, while the sum is 35.

The square root of 74142719 is about 8610.6166445848. The cubic root of 74142719 is about 420.1033740255.

The spelling of 74142719 in words is "seventy-four million, one hundred forty-two thousand, seven hundred nineteen".