74825147 has 4 divisors (see below), whose sum is σ = 74870640. Its totient is φ = 74779656.

The previous prime is 74825129. The next prime is 74825167. The reversal of 74825147 is 74152847.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74152847 = 37 ⋅2004131.

It is a cyclic number.

It is not a de Polignac number, because 74825147 - 2¹² = 74821051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74825147.

It is not an unprimeable number, because it can be changed into a prime (74825167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20183 + ... + 23600.

It is an arithmetic number, because the mean of its divisors is an integer number (18717660).

Almost surely, 2^74825147 is an apocalyptic number.

74825147 is a deficient number, since it is larger than the sum of its proper divisors (45493).

74825147 is a wasteful number, since it uses less digits than its factorization.

74825147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45492.

The product of its digits is 62720, while the sum is 38.

The square root of 74825147 is about 8650.1530044271. The cubic root of 74825147 is about 421.3883515658.

The spelling of 74825147 in words is "seventy-four million, eight hundred twenty-five thousand, one hundred forty-seven".