73955137 has 2 divisors, whose sum is σ = 73955138. Its totient is φ = 73955136.

The previous prime is 73955131. The next prime is 73955153. The reversal of 73955137 is 73155937.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71927361 + 2027776 = 8481^2 + 1424^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73955137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73955137.

It is not a weakly prime, because it can be changed into another prime (73955131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36977568 + 36977569.

It is an arithmetic number, because the mean of its divisors is an integer number (36977569).

Almost surely, 2^73955137 is an apocalyptic number.

It is an amenable number.

73955137 is a deficient number, since it is larger than the sum of its proper divisors (1).

73955137 is an equidigital number, since it uses as much as digits as its factorization.

73955137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 99225, while the sum is 40.

The square root of 73955137 is about 8599.7172627942. The cubic root of 73955137 is about 419.7487859016.

The spelling of 73955137 in words is "seventy-three million, nine hundred fifty-five thousand, one hundred thirty-seven".