73315147 has 2 divisors, whose sum is σ = 73315148. Its totient is φ = 73315146.

The previous prime is 73315087. The next prime is 73315157. The reversal of 73315147 is 74151337.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73315147 - 2¹¹ = 73313099 is a prime.

It is a super-2 number, since 2×73315147² = 10750221559263218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73315157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36657573 + 36657574.

It is an arithmetic number, because the mean of its divisors is an integer number (36657574).

Almost surely, 2^73315147 is an apocalyptic number.

73315147 is a deficient number, since it is larger than the sum of its proper divisors (1).

73315147 is an equidigital number, since it uses as much as digits as its factorization.

73315147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8820, while the sum is 31.

The square root of 73315147 is about 8562.4264668375. The cubic root of 73315147 is about 418.5344746110.

The spelling of 73315147 in words is "seventy-three million, three hundred fifteen thousand, one hundred forty-seven".