73381147 has 16 divisors (see below), whose sum is σ = 86952960. Its totient is φ = 60622848.

The previous prime is 73381117. The next prime is 73381151. The reversal of 73381147 is 74118337.

It is a cyclic number.

It is not a de Polignac number, because 73381147 - 2¹⁹ = 72856859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73381117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20379 + ... + 23707.

It is an arithmetic number, because the mean of its divisors is an integer number (5434560).

Almost surely, 2^73381147 is an apocalyptic number.

73381147 is a deficient number, since it is larger than the sum of its proper divisors (13571813).

73381147 is a wasteful number, since it uses less digits than its factorization.

73381147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3450.

The product of its digits is 14112, while the sum is 34.

The square root of 73381147 is about 8566.2796475483. The cubic root of 73381147 is about 418.6600284315.

The spelling of 73381147 in words is "seventy-three million, three hundred eighty-one thousand, one hundred forty-seven".