73157453 has 2 divisors, whose sum is σ = 73157454. Its totient is φ = 73157452.

The previous prime is 73157449. The next prime is 73157533. The reversal of 73157453 is 35475137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70341769 + 2815684 = 8387^2 + 1678^2 .

It is a cyclic number.

It is not a de Polignac number, because 73157453 - 2² = 73157449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73157423) 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, 36578726 + 36578727.

It is an arithmetic number, because the mean of its divisors is an integer number (36578727).

Almost surely, 2^73157453 is an apocalyptic number.

It is an amenable number.

73157453 is a deficient number, since it is larger than the sum of its proper divisors (1).

73157453 is an equidigital number, since it uses as much as digits as its factorization.

73157453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44100, while the sum is 35.

The square root of 73157453 is about 8553.2130220169. The cubic root of 73157453 is about 418.2341830843.

The spelling of 73157453 in words is "seventy-three million, one hundred fifty-seven thousand, four hundred fifty-three".