73315453 has 2 divisors, whose sum is σ = 73315454. Its totient is φ = 73315452.

The previous prime is 73315447. The next prime is 73315457. The reversal of 73315453 is 35451337.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36990724 + 36324729 = 6082^2 + 6027^2 .

It is an emirp because it is prime and its reverse (35451337) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73315453 - 2¹³ = 73307261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73315457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36657726 + 36657727.

It is an arithmetic number, because the mean of its divisors is an integer number (36657727).

Almost surely, 2^73315453 is an apocalyptic number.

It is an amenable number.

73315453 is a deficient number, since it is larger than the sum of its proper divisors (1).

73315453 is an equidigital number, since it uses as much as digits as its factorization.

73315453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 31.

The square root of 73315453 is about 8562.4443355855. Note that the first 3 decimals coincide. The cubic root of 73315453 is about 418.5350568980.

The spelling of 73315453 in words is "seventy-three million, three hundred fifteen thousand, four hundred fifty-three".