3145742885731 has 2 divisors, whose sum is σ = 3145742885732. Its totient is φ = 3145742885730.

The previous prime is 3145742885713. The next prime is 3145742885863. The reversal of 3145742885731 is 1375882475413.

3145742885731 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (3145742885713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3145742885731 - 2¹⁵ = 3145742852963 is a prime.

It is a super-2 number, since 2×3145742885731² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3145742885531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572871442865 + 1572871442866.

It is an arithmetic number, because the mean of its divisors is an integer number (1572871442866).

Almost surely, 2^{3145742885731} is an apocalyptic number.

3145742885731 is a deficient number, since it is larger than the sum of its proper divisors (1).

3145742885731 is an equidigital number, since it uses as much as digits as its factorization.

3145742885731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22579200, while the sum is 58.

The spelling of 3145742885731 in words is "three trillion, one hundred forty-five billion, seven hundred forty-two million, eight hundred eighty-five thousand, seven hundred thirty-one".