73550131 has 4 divisors (see below), whose sum is σ = 73662064. Its totient is φ = 73438200.

The previous prime is 73550129. The next prime is 73550161. The reversal of 73550131 is 13105537.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73550131 - 2¹ = 73550129 is a prime.

It is a super-2 number, since 2×73550131² = 10819243540234322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73550096 and 73550105.

It is not an unprimeable number, because it can be changed into a prime (73550101) 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 in 3 ways as a sum of consecutive naturals, for example, 54975 + ... + 56296.

It is an arithmetic number, because the mean of its divisors is an integer number (18415516).

Almost surely, 2^73550131 is an apocalyptic number.

73550131 is a deficient number, since it is larger than the sum of its proper divisors (111933).

73550131 is a wasteful number, since it uses less digits than its factorization.

73550131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111932.

The product of its (nonzero) digits is 1575, while the sum is 25.

The square root of 73550131 is about 8576.1373006733. The cubic root of 73550131 is about 418.9811491036.

Adding to 73550131 its reverse (13105537), we get a palindrome (86655668).

The spelling of 73550131 in words is "seventy-three million, five hundred fifty thousand, one hundred thirty-one".