73273157 has 2 divisors, whose sum is σ = 73273158. Its totient is φ = 73273156.

The previous prime is 73273133. The next prime is 73273163. The reversal of 73273157 is 75137237.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67387681 + 5885476 = 8209^2 + 2426^2 .

It is a cyclic number.

It is not a de Polignac number, because 73273157 - 2¹⁸ = 73011013 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73273127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36636578 + 36636579.

It is an arithmetic number, because the mean of its divisors is an integer number (36636579).

Almost surely, 2^73273157 is an apocalyptic number.

It is an amenable number.

73273157 is a deficient number, since it is larger than the sum of its proper divisors (1).

73273157 is an equidigital number, since it uses as much as digits as its factorization.

73273157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30870, while the sum is 35.

The square root of 73273157 is about 8559.9741237927. The cubic root of 73273157 is about 418.4545565245.

The spelling of 73273157 in words is "seventy-three million, two hundred seventy-three thousand, one hundred fifty-seven".