31487063 has 2 divisors, whose sum is σ = 31487064. Its totient is φ = 31487062.

The previous prime is 31487033. The next prime is 31487081. The reversal of 31487063 is 36078413.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31487063 - 2⁶ = 31486999 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31487033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15743531 + 15743532.

It is an arithmetic number, because the mean of its divisors is an integer number (15743532).

Almost surely, 2^31487063 is an apocalyptic number.

31487063 is a deficient number, since it is larger than the sum of its proper divisors (1).

31487063 is an equidigital number, since it uses as much as digits as its factorization.

31487063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 31487063 is about 5611.3334422399. Note that the first 3 decimals coincide. The cubic root of 31487063 is about 315.7747386482.

The spelling of 31487063 in words is "thirty-one million, four hundred eighty-seven thousand, sixty-three".