73117542 has 16 divisors (see below), whose sum is σ = 146673072. Its totient is φ = 24299520.

The previous prime is 73117531. The next prime is 73117543. The reversal of 73117542 is 24571137.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73117543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16059 + ... + 20102.

It is an arithmetic number, because the mean of its divisors is an integer number (9167067).

Almost surely, 2^73117542 is an apocalyptic number.

73117542 is an abundant number, since it is smaller than the sum of its proper divisors (73555530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73117542 is a wasteful number, since it uses less digits than its factorization.

73117542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36503.

The product of its digits is 5880, while the sum is 30.

The square root of 73117542 is about 8550.8796038770. The cubic root of 73117542 is about 418.1581134555.

Adding to 73117542 its reverse (24571137), we get a palindrome (97688679).

The spelling of 73117542 in words is "seventy-three million, one hundred seventeen thousand, five hundred forty-two".