73144937 has 2 divisors, whose sum is σ = 73144938. Its totient is φ = 73144936.

The previous prime is 73144933. The next prime is 73144969. The reversal of 73144937 is 73944137.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73085401 + 59536 = 8549^2 + 244^2 .

It is a cyclic number.

It is not a de Polignac number, because 73144937 - 2² = 73144933 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73144937.

It is not a weakly prime, because it can be changed into another prime (73144933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36572468 + 36572469.

It is an arithmetic number, because the mean of its divisors is an integer number (36572469).

Almost surely, 2^73144937 is an apocalyptic number.

It is an amenable number.

73144937 is a deficient number, since it is larger than the sum of its proper divisors (1).

73144937 is an equidigital number, since it uses as much as digits as its factorization.

73144937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 38.

The square root of 73144937 is about 8552.4813358463. The cubic root of 73144937 is about 418.2103307978.

The spelling of 73144937 in words is "seventy-three million, one hundred forty-four thousand, nine hundred thirty-seven".