2545142124 has 72 divisors (see below), whose sum is σ = 6949877760. Its totient is φ = 722801184.

The previous prime is 2545142123. The next prime is 2545142137. The reversal of 2545142124 is 4212415452.

It is a junction number, because it is equal to n+sod(n) for n = 2545142091 and 2545142100.

It is not an unprimeable number, because it can be changed into a prime (2545142123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85237 + ... + 111155.

It is an arithmetic number, because the mean of its divisors is an integer number (96526080).

Almost surely, 2^2545142124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2545142124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3474938880).

2545142124 is an abundant number, since it is smaller than the sum of its proper divisors (4404735636).

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

2545142124 is a wasteful number, since it uses less digits than its factorization.

2545142124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26107 (or 26098 counting only the distinct ones).

The product of its digits is 12800, while the sum is 30.

The square root of 2545142124 is about 50449.4016218230. The cubic root of 2545142124 is about 1365.3290988208.

Adding to 2545142124 its reverse (4212415452), we get a palindrome (6757557576).

The spelling of 2545142124 in words is "two billion, five hundred forty-five million, one hundred forty-two thousand, one hundred twenty-four".