73132247 has 2 divisors, whose sum is σ = 73132248. Its totient is φ = 73132246.

The previous prime is 73132243. The next prime is 73132261. The reversal of 73132247 is 74223137.

It is a weak prime.

It is an emirp because it is prime and its reverse (74223137) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73132247 - 2² = 73132243 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73132243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36566123 + 36566124.

It is an arithmetic number, because the mean of its divisors is an integer number (36566124).

Almost surely, 2^73132247 is an apocalyptic number.

73132247 is a deficient number, since it is larger than the sum of its proper divisors (1).

73132247 is an equidigital number, since it uses as much as digits as its factorization.

73132247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 29.

The square root of 73132247 is about 8551.7394137099. The cubic root of 73132247 is about 418.1861441338.

The spelling of 73132247 in words is "seventy-three million, one hundred thirty-two thousand, two hundred forty-seven".