31466242147 has 2 divisors, whose sum is σ = 31466242148. Its totient is φ = 31466242146.

The previous prime is 31466242141. The next prime is 31466242151. The reversal of 31466242147 is 74124266413.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31466242147 is a prime.

It is not a weakly prime, because it can be changed into another prime (31466242141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15733121073 + 15733121074.

It is an arithmetic number, because the mean of its divisors is an integer number (15733121074).

Almost surely, 2^31466242147 is an apocalyptic number.

31466242147 is a deficient number, since it is larger than the sum of its proper divisors (1).

31466242147 is an equidigital number, since it uses as much as digits as its factorization.

31466242147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 40.

The spelling of 31466242147 in words is "thirty-one billion, four hundred sixty-six million, two hundred forty-two thousand, one hundred forty-seven".