72673141 has 2 divisors, whose sum is σ = 72673142. Its totient is φ = 72673140.

The previous prime is 72673093. The next prime is 72673151. The reversal of 72673141 is 14137627.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56100100 + 16573041 = 7490^2 + 4071^2 .

It is a cyclic number.

It is not a de Polignac number, because 72673141 - 2²³ = 64284533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72673151) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36336570 + 36336571.

It is an arithmetic number, because the mean of its divisors is an integer number (36336571).

Almost surely, 2^72673141 is an apocalyptic number.

It is an amenable number.

72673141 is a deficient number, since it is larger than the sum of its proper divisors (1).

72673141 is an equidigital number, since it uses as much as digits as its factorization.

72673141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056, while the sum is 31.

The square root of 72673141 is about 8524.8543096055. The cubic root of 72673141 is about 417.3092170979.

The spelling of 72673141 in words is "seventy-two million, six hundred seventy-three thousand, one hundred forty-one".