31385483 has 4 divisors (see below), whose sum is σ = 31396968. Its totient is φ = 31374000.

The previous prime is 31385461. The next prime is 31385489. The reversal of 31385483 is 38458313.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 38458313 = 3539 ⋅10867.

It is a cyclic number.

It is not a de Polignac number, because 31385483 - 2¹⁰ = 31384459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31385489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983 + ... + 7983.

It is an arithmetic number, because the mean of its divisors is an integer number (7849242).

Almost surely, 2^31385483 is an apocalyptic number.

31385483 is a deficient number, since it is larger than the sum of its proper divisors (11485).

31385483 is an equidigital number, since it uses as much as digits as its factorization.

31385483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11484.

The product of its digits is 34560, while the sum is 35.

The square root of 31385483 is about 5602.2748058266. The cubic root of 31385483 is about 315.4348005848.

The spelling of 31385483 in words is "thirty-one million, three hundred eighty-five thousand, four hundred eighty-three".