2521142130 has 64 divisors (see below), whose sum is σ = 6525163008. Its totient is φ = 619733760.

The previous prime is 2521142077. The next prime is 2521142137. The reversal of 2521142130 is 312411252.

It is a junction number, because it is equal to n+sod(n) for n = 2521142097 and 2521142106.

It is not an unprimeable number, because it can be changed into a prime (2521142137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 306775 + ... + 314885.

It is an arithmetic number, because the mean of its divisors is an integer number (101955672).

Almost surely, 2^2521142130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2521142130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3262581504).

2521142130 is an abundant number, since it is smaller than the sum of its proper divisors (4004020878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2521142130 is a wasteful number, since it uses less digits than its factorization.

2521142130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8931.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2521142130 is about 50210.9761904705. The cubic root of 2521142130 is about 1361.0239783228.

Adding to 2521142130 its reverse (312411252), we get a palindrome (2833553382).

The spelling of 2521142130 in words is "two billion, five hundred twenty-one million, one hundred forty-two thousand, one hundred thirty".