3142391731 has 2 divisors, whose sum is σ = 3142391732. Its totient is φ = 3142391730.

The previous prime is 3142391701. The next prime is 3142391821. The reversal of 3142391731 is 1371932413.

It is a weak prime.

It is an emirp because it is prime and its reverse (1371932413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3142391731 - 2¹⁷ = 3142260659 is a prime.

It is a super-2 number, since 2×3142391731² = 19749251582114352722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3142391701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1571195865 + 1571195866.

It is an arithmetic number, because the mean of its divisors is an integer number (1571195866).

Almost surely, 2^3142391731 is an apocalyptic number.

3142391731 is a deficient number, since it is larger than the sum of its proper divisors (1).

3142391731 is an equidigital number, since it uses as much as digits as its factorization.

3142391731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 34.

The square root of 3142391731 is about 56057.0399771518. The cubic root of 3142391731 is about 1464.7160520868.

The spelling of 3142391731 in words is "three billion, one hundred forty-two million, three hundred ninety-one thousand, seven hundred thirty-one".