39742201 has 2 divisors, whose sum is σ = 39742202. Its totient is φ = 39742200.

The previous prime is 39742133. The next prime is 39742207. The reversal of 39742201 is 10224793.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39388176 + 354025 = 6276^2 + 595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39742201 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 39742201.

It is not a weakly prime, because it can be changed into another prime (39742207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19871100 + 19871101.

It is an arithmetic number, because the mean of its divisors is an integer number (19871101).

Almost surely, 2^39742201 is an apocalyptic number.

It is an amenable number.

39742201 is a deficient number, since it is larger than the sum of its proper divisors (1).

39742201 is an equidigital number, since it uses as much as digits as its factorization.

39742201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 39742201 is about 6304.1415751869. The cubic root of 39742201 is about 341.2588884337.

Adding to 39742201 its reverse (10224793), we get a palindrome (49966994).

The spelling of 39742201 in words is "thirty-nine million, seven hundred forty-two thousand, two hundred one".