73145323 has 2 divisors, whose sum is σ = 73145324. Its totient is φ = 73145322.

The previous prime is 73145299. The next prime is 73145341. The reversal of 73145323 is 32354137.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73145323 - 2⁹ = 73144811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73145291 and 73145300.

It is not a weakly prime, because it can be changed into another prime (73145363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36572661 + 36572662.

It is an arithmetic number, because the mean of its divisors is an integer number (36572662).

Almost surely, 2^73145323 is an apocalyptic number.

73145323 is a deficient number, since it is larger than the sum of its proper divisors (1).

73145323 is an equidigital number, since it uses as much as digits as its factorization.

73145323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 28.

The square root of 73145323 is about 8552.5039023668. The cubic root of 73145323 is about 418.2110664555.

The spelling of 73145323 in words is "seventy-three million, one hundred forty-five thousand, three hundred twenty-three".