3540857939 has 2 divisors, whose sum is σ = 3540857940. Its totient is φ = 3540857938.

The previous prime is 3540857923. The next prime is 3540857953. The reversal of 3540857939 is 9397580453.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3540857939 - 2⁴ = 3540857923 is a prime.

It is not a weakly prime, because it can be changed into another prime (3540857909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1770428969 + 1770428970.

It is an arithmetic number, because the mean of its divisors is an integer number (1770428970).

Almost surely, 2^3540857939 is an apocalyptic number.

3540857939 is a deficient number, since it is larger than the sum of its proper divisors (1).

3540857939 is an equidigital number, since it uses as much as digits as its factorization.

3540857939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4082400, while the sum is 53.

The square root of 3540857939 is about 59505.1085117908. The cubic root of 3540857939 is about 1524.1796808639.

The spelling of 3540857939 in words is "three billion, five hundred forty million, eight hundred fifty-seven thousand, nine hundred thirty-nine".