2102531524 has 6 divisors (see below), whose sum is σ = 3679430174. Its totient is φ = 1051265760.

The previous prime is 2102531521. The next prime is 2102531531. The reversal of 2102531524 is 4251352012.

It can be written as a sum of positive squares in only one way, i.e., 2081001924 + 21529600 = 45618^2 + 4640^2 .

It is not an unprimeable number, because it can be changed into a prime (2102531521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262816437 + ... + 262816444.

Almost surely, 2^2102531524 is an apocalyptic number.

It is an amenable number.

2102531524 is a deficient number, since it is larger than the sum of its proper divisors (1576898650).

2102531524 is a wasteful number, since it uses less digits than its factorization.

2102531524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525632885 (or 525632883 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2102531524 is about 45853.3698216391. The cubic root of 2102531524 is about 1281.0935324645.

Adding to 2102531524 its reverse (4251352012), we get a palindrome (6353883536).

The spelling of 2102531524 in words is "two billion, one hundred two million, five hundred thirty-one thousand, five hundred twenty-four".