39187241 has 2 divisors, whose sum is σ = 39187242. Its totient is φ = 39187240.

The previous prime is 39187231. The next prime is 39187249. The reversal of 39187241 is 14278193.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35652841 + 3534400 = 5971^2 + 1880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39187241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (39187249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19593620 + 19593621.

It is an arithmetic number, because the mean of its divisors is an integer number (19593621).

Almost surely, 2^39187241 is an apocalyptic number.

It is an amenable number.

39187241 is a deficient number, since it is larger than the sum of its proper divisors (1).

39187241 is an equidigital number, since it uses as much as digits as its factorization.

39187241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 35.

The square root of 39187241 is about 6259.9713258129. The cubic root of 39187241 is about 339.6629907484.

The spelling of 39187241 in words is "thirty-nine million, one hundred eighty-seven thousand, two hundred forty-one".