2105142532 has 24 divisors (see below), whose sum is σ = 3700939032. Its totient is φ = 1047744000.

The previous prime is 2105142527. The next prime is 2105142577. The reversal of 2105142532 is 2352415012.

It can be written as a sum of positive squares in 4 ways, for example, as 782656576 + 1322485956 = 27976^2 + 36366^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2105142497 and 2105142506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 982182 + ... + 984322.

It is an arithmetic number, because the mean of its divisors is an integer number (154205793).

Almost surely, 2^2105142532 is an apocalyptic number.

It is an amenable number.

2105142532 is a deficient number, since it is larger than the sum of its proper divisors (1595796500).

2105142532 is a wasteful number, since it uses less digits than its factorization.

2105142532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159 (or 3157 counting only the distinct ones).

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

The square root of 2105142532 is about 45881.8322650698. The cubic root of 2105142532 is about 1281.6236175467.

Adding to 2105142532 its reverse (2352415012), we get a palindrome (4457557544).

The spelling of 2105142532 in words is "two billion, one hundred five million, one hundred forty-two thousand, five hundred thirty-two".