2102534545 has 16 divisors (see below), whose sum is σ = 2610316800. Its totient is φ = 1624089600.

The previous prime is 2102534527. The next prime is 2102534563. The reversal of 2102534545 is 5454352012.

It is an interprime number because it is at equal distance from previous prime (2102534527) and next prime (2102534563).

It is not a de Polignac number, because 2102534545 - 2⁵ = 2102534513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54490 + ... + 84700.

It is an arithmetic number, because the mean of its divisors is an integer number (163144800).

Almost surely, 2^2102534545 is an apocalyptic number.

It is an amenable number.

2102534545 is a deficient number, since it is larger than the sum of its proper divisors (507782255).

2102534545 is a wasteful number, since it uses less digits than its factorization.

2102534545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30696.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2102534545 is about 45853.4027635900. The cubic root of 2102534545 is about 1281.0941460394.

Adding to 2102534545 its reverse (5454352012), we get a palindrome (7556886557).

The spelling of 2102534545 in words is "two billion, one hundred two million, five hundred thirty-four thousand, five hundred forty-five".