73131701 has 2 divisors, whose sum is σ = 73131702. Its totient is φ = 73131700.

The previous prime is 73131683. The next prime is 73131727. The reversal of 73131701 is 10713137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73119601 + 12100 = 8551^2 + 110^2 .

It is an emirp because it is prime and its reverse (10713137) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73131701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73131791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36565850 + 36565851.

It is an arithmetic number, because the mean of its divisors is an integer number (36565851).

Almost surely, 2^73131701 is an apocalyptic number.

It is an amenable number.

73131701 is a deficient number, since it is larger than the sum of its proper divisors (1).

73131701 is an equidigital number, since it uses as much as digits as its factorization.

73131701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 441, while the sum is 23.

The square root of 73131701 is about 8551.7074903203. The cubic root of 73131701 is about 418.1851034155.

Adding to 73131701 its reverse (10713137), we get a palindrome (83844838).

The spelling of 73131701 in words is "seventy-three million, one hundred thirty-one thousand, seven hundred one".