2125540734 has 16 divisors (see below), whose sum is σ = 4251613440. Its totient is φ = 708424920.

The previous prime is 2125540723. The next prime is 2125540757. The reversal of 2125540734 is 4370455212.

It is a junction number, because it is equal to n+sod(n) for n = 2125540695 and 2125540704.

It is a congruent number.

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, 45819 + ... + 79689.

It is an arithmetic number, because the mean of its divisors is an integer number (265725840).

Almost surely, 2^2125540734 is an apocalyptic number.

2125540734 is an abundant number, since it is smaller than the sum of its proper divisors (2126072706).

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

2125540734 is a wasteful number, since it uses less digits than its factorization.

2125540734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44335.

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 2125540734 is about 46103.5869971090. The cubic root of 2125540734 is about 1285.7498354439.

Adding to 2125540734 its reverse (4370455212), we get a palindrome (6495995946).

The spelling of 2125540734 in words is "two billion, one hundred twenty-five million, five hundred forty thousand, seven hundred thirty-four".