74800147 has 2 divisors, whose sum is σ = 74800148. Its totient is φ = 74800146.

The previous prime is 74800129. The next prime is 74800151. The reversal of 74800147 is 74100847.

It is a strong prime.

It is an emirp because it is prime and its reverse (74100847) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74800147 - 2¹⁵ = 74767379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74800157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37400073 + 37400074.

It is an arithmetic number, because the mean of its divisors is an integer number (37400074).

Almost surely, 2^74800147 is an apocalyptic number.

74800147 is a deficient number, since it is larger than the sum of its proper divisors (1).

74800147 is an equidigital number, since it uses as much as digits as its factorization.

74800147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 74800147 is about 8648.7078225594. The cubic root of 74800147 is about 421.3414159981.

It can be divided in two parts, 74800 and 147, that added together give a palindrome (74947).

The spelling of 74800147 in words is "seventy-four million, eight hundred thousand, one hundred forty-seven".