73131700 has 36 divisors (see below), whose sum is σ = 162575532. Its totient is φ = 28537600.

The previous prime is 73131683. The next prime is 73131701. The reversal of 73131700 is 713137.

It can be written as a sum of positive squares in 6 ways, for example, as 3709476 + 69422224 = 1926^2 + 8332^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73131701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4819 + ... + 13018.

It is an arithmetic number, because the mean of its divisors is an integer number (4515987).

Almost surely, 2^73131700 is an apocalyptic number.

It is an amenable number.

73131700 is an abundant number, since it is smaller than the sum of its proper divisors (89443832).

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

73131700 is a wasteful number, since it uses less digits than its factorization.

73131700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17892 (or 17885 counting only the distinct ones).

The product of its (nonzero) digits is 441, while the sum is 22.

The square root of 73131700 is about 8551.7074318524. The cubic root of 73131700 is about 418.1851015094.

Adding to 73131700 its reverse (713137), we get a palindrome (73844837).

The spelling of 73131700 in words is "seventy-three million, one hundred thirty-one thousand, seven hundred".