74148719 has 4 divisors (see below), whose sum is σ = 74166240. Its totient is φ = 74131200.

The previous prime is 74148691. The next prime is 74148743. The reversal of 74148719 is 91784147.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74148719 - 2¹⁶ = 74083183 is a prime.

It is a super-2 number, since 2×74148719² = 10996065058681922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74148769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1967 + ... + 12335.

It is an arithmetic number, because the mean of its divisors is an integer number (18541560).

Almost surely, 2^74148719 is an apocalyptic number.

74148719 is a deficient number, since it is larger than the sum of its proper divisors (17521).

74148719 is a wasteful number, since it uses less digits than its factorization.

74148719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17520.

The product of its digits is 56448, while the sum is 41.

The square root of 74148719 is about 8610.9650446393. The cubic root of 74148719 is about 420.1147060092.

The spelling of 74148719 in words is "seventy-four million, one hundred forty-eight thousand, seven hundred nineteen".