39421141 has 2 divisors, whose sum is σ = 39421142. Its totient is φ = 39421140.

The previous prime is 39421133. The next prime is 39421163. The reversal of 39421141 is 14112493.

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., 39312900 + 108241 = 6270^2 + 329^2 .

It is an emirp because it is prime and its reverse (14112493) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39421141 - 2³ = 39421133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39421171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19710570 + 19710571.

It is an arithmetic number, because the mean of its divisors is an integer number (19710571).

Almost surely, 2^39421141 is an apocalyptic number.

It is an amenable number.

39421141 is a deficient number, since it is larger than the sum of its proper divisors (1).

39421141 is an equidigital number, since it uses as much as digits as its factorization.

39421141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 25.

The square root of 39421141 is about 6278.6257254275. The cubic root of 39421141 is about 340.3374418030.

The spelling of 39421141 in words is "thirty-nine million, four hundred twenty-one thousand, one hundred forty-one".