73394137 has 2 divisors, whose sum is σ = 73394138. Its totient is φ = 73394136.

The previous prime is 73394089. The next prime is 73394147. The reversal of 73394137 is 73149337.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65464281 + 7929856 = 8091^2 + 2816^2 .

It is an emirp because it is prime and its reverse (73149337) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73394137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73394096 and 73394105.

It is not a weakly prime, because it can be changed into another prime (73394147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36697068 + 36697069.

It is an arithmetic number, because the mean of its divisors is an integer number (36697069).

Almost surely, 2^73394137 is an apocalyptic number.

It is an amenable number.

73394137 is a deficient number, since it is larger than the sum of its proper divisors (1).

73394137 is an equidigital number, since it uses as much as digits as its factorization.

73394137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47628, while the sum is 37.

The square root of 73394137 is about 8567.0378194566. The cubic root of 73394137 is about 418.6847308386.

It can be divided in two parts, 7339 and 4137, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 73394137 in words is "seventy-three million, three hundred ninety-four thousand, one hundred thirty-seven".