3142442731 has 2 divisors, whose sum is σ = 3142442732. Its totient is φ = 3142442730.

The previous prime is 3142442713. The next prime is 3142442761. The reversal of 3142442731 is 1372442413.

Together with previous prime (3142442713) 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 3142442731 - 2⁷ = 3142442603 is a prime.

It is a super-2 number, since 2×3142442731² = 19749892635229476722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3142442693 and 3142442702.

It is not a weakly prime, because it can be changed into another prime (3142442711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1571221365 + 1571221366.

It is an arithmetic number, because the mean of its divisors is an integer number (1571221366).

Almost surely, 2^3142442731 is an apocalyptic number.

3142442731 is a deficient number, since it is larger than the sum of its proper divisors (1).

3142442731 is an equidigital number, since it uses as much as digits as its factorization.

3142442731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 31.

The square root of 3142442731 is about 56057.4948691074. The cubic root of 3142442731 is about 1464.7239759996.

The spelling of 3142442731 in words is "three billion, one hundred forty-two million, four hundred forty-two thousand, seven hundred thirty-one".