73229531 has 2 divisors, whose sum is σ = 73229532. Its totient is φ = 73229530.

The previous prime is 73229521. The next prime is 73229551. The reversal of 73229531 is 13592237.

It is a weak prime.

It is an emirp because it is prime and its reverse (13592237) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73229531 is a prime.

It is a super-2 number, since 2×73229531² = 10725128420959922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73229521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36614765 + 36614766.

It is an arithmetic number, because the mean of its divisors is an integer number (36614766).

Almost surely, 2^73229531 is an apocalyptic number.

73229531 is a deficient number, since it is larger than the sum of its proper divisors (1).

73229531 is an equidigital number, since it uses as much as digits as its factorization.

73229531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 32.

The square root of 73229531 is about 8557.4254890125. The cubic root of 73229531 is about 418.3714923508.

The spelling of 73229531 in words is "seventy-three million, two hundred twenty-nine thousand, five hundred thirty-one".