73418251 has 2 divisors, whose sum is σ = 73418252. Its totient is φ = 73418250.

The previous prime is 73418239. The next prime is 73418263. The reversal of 73418251 is 15281437.

It is a balanced prime because it is at equal distance from previous prime (73418239) and next prime (73418263).

It is a cyclic number.

It is not a de Polignac number, because 73418251 - 2⁹ = 73417739 is a prime.

It is not a weakly prime, because it can be changed into another prime (73418201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36709125 + 36709126.

It is an arithmetic number, because the mean of its divisors is an integer number (36709126).

Almost surely, 2^73418251 is an apocalyptic number.

73418251 is a deficient number, since it is larger than the sum of its proper divisors (1).

73418251 is an equidigital number, since it uses as much as digits as its factorization.

73418251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 31.

The square root of 73418251 is about 8568.4450748079. The cubic root of 73418251 is about 418.7305794513.

Adding to 73418251 its reverse (15281437), we get a palindrome (88699688).

The spelling of 73418251 in words is "seventy-three million, four hundred eighteen thousand, two hundred fifty-one".