72541237 has 2 divisors, whose sum is σ = 72541238. Its totient is φ = 72541236.

The previous prime is 72541223. The next prime is 72541279. The reversal of 72541237 is 73214527.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67223601 + 5317636 = 8199^2 + 2306^2 .

It is a cyclic number.

It is not a de Polignac number, because 72541237 - 2²³ = 64152629 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 72541199 and 72541208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72541207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36270618 + 36270619.

It is an arithmetic number, because the mean of its divisors is an integer number (36270619).

Almost surely, 2^72541237 is an apocalyptic number.

It is an amenable number.

72541237 is a deficient number, since it is larger than the sum of its proper divisors (1).

72541237 is an equidigital number, since it uses as much as digits as its factorization.

72541237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11760, while the sum is 31.

The square root of 72541237 is about 8517.1143587485. The cubic root of 72541237 is about 417.0565878116.

The spelling of 72541237 in words is "seventy-two million, five hundred forty-one thousand, two hundred thirty-seven".