2102506473 has 8 divisors (see below), whose sum is σ = 2803592736. Its totient is φ = 1401545600.

The previous prime is 2102506447. The next prime is 2102506487. The reversal of 2102506473 is 3746052012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102506473 is a prime.

It is a super-3 number, since 3×2102506473³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2102506473.

It is not an unprimeable number, because it can be changed into a prime (2102506403) 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 7 ways as a sum of consecutive naturals, for example, 19618 + ... + 67748.

It is an arithmetic number, because the mean of its divisors is an integer number (350449092).

Almost surely, 2^2102506473 is an apocalyptic number.

It is an amenable number.

2102506473 is a deficient number, since it is larger than the sum of its proper divisors (701086263).

2102506473 is a wasteful number, since it uses less digits than its factorization.

2102506473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62695.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 2102506473 is about 45853.0966566054. The cubic root of 2102506473 is about 1281.0884445025.

Adding to 2102506473 its reverse (3746052012), we get a palindrome (5848558485).

The spelling of 2102506473 in words is "two billion, one hundred two million, five hundred six thousand, four hundred seventy-three".