73158641 has 2 divisors, whose sum is σ = 73158642. Its totient is φ = 73158640.

The previous prime is 73158577. The next prime is 73158647. The reversal of 73158641 is 14685137.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51265600 + 21893041 = 7160^2 + 4679^2 .

It is a cyclic number.

It is not a de Polignac number, because 73158641 - 2⁶ = 73158577 is a prime.

It is not a weakly prime, because it can be changed into another prime (73158647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36579320 + 36579321.

It is an arithmetic number, because the mean of its divisors is an integer number (36579321).

Almost surely, 2^73158641 is an apocalyptic number.

It is an amenable number.

73158641 is a deficient number, since it is larger than the sum of its proper divisors (1).

73158641 is an equidigital number, since it uses as much as digits as its factorization.

73158641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 35.

The square root of 73158641 is about 8553.2824693214. The cubic root of 73158641 is about 418.2364469662.

The spelling of 73158641 in words is "seventy-three million, one hundred fifty-eight thousand, six hundred forty-one".