73544131 has 2 divisors, whose sum is σ = 73544132. Its totient is φ = 73544130.

The previous prime is 73544113. The next prime is 73544167. The reversal of 73544131 is 13144537.

Together with previous prime (73544113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73544131 - 2⁵ = 73544099 is a prime.

It is a super-2 number, since 2×73544131² = 10817478409090322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 73544131.

It is not a weakly prime, because it can be changed into another prime (73544111) 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, 36772065 + 36772066.

It is an arithmetic number, because the mean of its divisors is an integer number (36772066).

Almost surely, 2^73544131 is an apocalyptic number.

73544131 is a deficient number, since it is larger than the sum of its proper divisors (1).

73544131 is an equidigital number, since it uses as much as digits as its factorization.

73544131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 28.

The square root of 73544131 is about 8575.7874857065. The cubic root of 73544131 is about 418.9697557169.

Adding to 73544131 its reverse (13144537), we get a palindrome (86688668).

The spelling of 73544131 in words is "seventy-three million, five hundred forty-four thousand, one hundred thirty-one".