3281387053 has 4 divisors (see below), whose sum is σ = 3750156640. Its totient is φ = 2812617468.

The previous prime is 3281387041. The next prime is 3281387059. The reversal of 3281387053 is 3507831823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3507831823 = 269 ⋅13040267.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3281387053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3281386997 and 3281387015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3281387059) 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 in 3 ways as a sum of consecutive naturals, for example, 234384783 + ... + 234384796.

It is an arithmetic number, because the mean of its divisors is an integer number (937539160).

Almost surely, 2^3281387053 is an apocalyptic number.

It is an amenable number.

3281387053 is a deficient number, since it is larger than the sum of its proper divisors (468769587).

3281387053 is an equidigital number, since it uses as much as digits as its factorization.

3281387053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468769586.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 3281387053 is about 57283.3924711168. The cubic root of 3281387053 is about 1486.0011769779.

The spelling of 3281387053 in words is "three billion, two hundred eighty-one million, three hundred eighty-seven thousand, fifty-three".