39742501 has 2 divisors, whose sum is σ = 39742502. Its totient is φ = 39742500.

The previous prime is 39742453. The next prime is 39742511. The reversal of 39742501 is 10524793.

39742501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31069476 + 8673025 = 5574^2 + 2945^2 .

It is a cyclic number.

It is not a de Polignac number, because 39742501 - 2¹⁹ = 39218213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39742511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19871250 + 19871251.

It is an arithmetic number, because the mean of its divisors is an integer number (19871251).

Almost surely, 2^39742501 is an apocalyptic number.

It is an amenable number.

39742501 is a deficient number, since it is larger than the sum of its proper divisors (1).

39742501 is an equidigital number, since it uses as much as digits as its factorization.

39742501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 39742501 is about 6304.1653690239. The cubic root of 39742501 is about 341.2597471130.

The spelling of 39742501 in words is "thirty-nine million, seven hundred forty-two thousand, five hundred one".