73005137701 has 2 divisors, whose sum is σ = 73005137702. Its totient is φ = 73005137700.

The previous prime is 73005137663. The next prime is 73005137713. The reversal of 73005137701 is 10773150037.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56263365601 + 16741772100 = 237199^2 + 129390^2 .

It is a cyclic number.

It is not a de Polignac number, because 73005137701 - 2⁹ = 73005137189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73005137771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36502568850 + 36502568851.

It is an arithmetic number, because the mean of its divisors is an integer number (36502568851).

Almost surely, 2^73005137701 is an apocalyptic number.

It is an amenable number.

73005137701 is a deficient number, since it is larger than the sum of its proper divisors (1).

73005137701 is an equidigital number, since it uses as much as digits as its factorization.

73005137701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15435, while the sum is 34.

Adding to 73005137701 its reverse (10773150037), we get a palindrome (83778287738).

The spelling of 73005137701 in words is "seventy-three billion, five million, one hundred thirty-seven thousand, seven hundred one".