73153513 has 2 divisors, whose sum is σ = 73153514. Its totient is φ = 73153512.

The previous prime is 73153511. The next prime is 73153517. The reversal of 73153513 is 31535137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68608089 + 4545424 = 8283^2 + 2132^2 .

It is a cyclic number.

It is not a de Polignac number, because 73153513 - 2¹ = 73153511 is a prime.

Together with 73153511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (73153511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36576756 + 36576757.

It is an arithmetic number, because the mean of its divisors is an integer number (36576757).

Almost surely, 2^73153513 is an apocalyptic number.

It is an amenable number.

73153513 is a deficient number, since it is larger than the sum of its proper divisors (1).

73153513 is an equidigital number, since it uses as much as digits as its factorization.

73153513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4725, while the sum is 28.

The square root of 73153513 is about 8552.9826961125. The cubic root of 73153513 is about 418.2266747480.

The spelling of 73153513 in words is "seventy-three million, one hundred fifty-three thousand, five hundred thirteen".