39140743 has 2 divisors, whose sum is σ = 39140744. Its totient is φ = 39140742.

The previous prime is 39140669. The next prime is 39140747. The reversal of 39140743 is 34704193.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39140743 - 2²⁵ = 5586311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39140747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19570371 + 19570372.

It is an arithmetic number, because the mean of its divisors is an integer number (19570372).

Almost surely, 2^39140743 is an apocalyptic number.

39140743 is a deficient number, since it is larger than the sum of its proper divisors (1).

39140743 is an equidigital number, since it uses as much as digits as its factorization.

39140743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 39140743 is about 6256.2563086881. The cubic root of 39140743 is about 339.5285941083.

The spelling of 39140743 in words is "thirty-nine million, one hundred forty thousand, seven hundred forty-three".