74500147 has 2 divisors, whose sum is σ = 74500148. Its totient is φ = 74500146.

The previous prime is 74500079. The next prime is 74500169. The reversal of 74500147 is 74100547.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74500147 is a prime.

It is not a weakly prime, because it can be changed into another prime (74500847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37250073 + 37250074.

It is an arithmetic number, because the mean of its divisors is an integer number (37250074).

Almost surely, 2^74500147 is an apocalyptic number.

74500147 is a deficient number, since it is larger than the sum of its proper divisors (1).

74500147 is an equidigital number, since it uses as much as digits as its factorization.

74500147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 74500147 is about 8631.3467662932. The cubic root of 74500147 is about 420.7773717001. Note that the first 3 decimals are identical.

It can be divided in two parts, 74500 and 147, that added together give a palindrome (74647).

The spelling of 74500147 in words is "seventy-four million, five hundred thousand, one hundred forty-seven".