73113137 has 2 divisors, whose sum is σ = 73113138. Its totient is φ = 73113136.

The previous prime is 73113133. The next prime is 73113151. The reversal of 73113137 is 73131137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47872561 + 25240576 = 6919^2 + 5024^2 .

It is a cyclic number.

It is not a de Polignac number, because 73113137 - 2² = 73113133 is a prime.

It is not a weakly prime, because it can be changed into another prime (73113133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36556568 + 36556569.

It is an arithmetic number, because the mean of its divisors is an integer number (36556569).

Almost surely, 2^73113137 is an apocalyptic number.

It is an amenable number.

73113137 is a deficient number, since it is larger than the sum of its proper divisors (1).

73113137 is an equidigital number, since it uses as much as digits as its factorization.

73113137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1323, while the sum is 26.

The square root of 73113137 is about 8550.6220241571. The cubic root of 73113137 is about 418.1497159108.

The spelling of 73113137 in words is "seventy-three million, one hundred thirteen thousand, one hundred thirty-seven".