73534261 has 2 divisors, whose sum is σ = 73534262. Its totient is φ = 73534260.

The previous prime is 73534259. The next prime is 73534271. The reversal of 73534261 is 16243537.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60357361 + 13176900 = 7769^2 + 3630^2 .

It is a cyclic number.

It is not a de Polignac number, because 73534261 - 2¹ = 73534259 is a prime.

It is a super-2 number, since 2×73534261² = 10814575081632242, which contains 22 as substring.

Together with 73534259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73534211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36767130 + 36767131.

It is an arithmetic number, because the mean of its divisors is an integer number (36767131).

Almost surely, 2^73534261 is an apocalyptic number.

It is an amenable number.

73534261 is a deficient number, since it is larger than the sum of its proper divisors (1).

73534261 is an equidigital number, since it uses as much as digits as its factorization.

73534261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 31.

The square root of 73534261 is about 8575.2120090409. The cubic root of 73534261 is about 418.9510122475.

Adding to 73534261 its reverse (16243537), we get a palindrome (89777798).

The spelling of 73534261 in words is "seventy-three million, five hundred thirty-four thousand, two hundred sixty-one".