2125756347 has 192 divisors, whose sum is σ = 4013452800. Its totient is φ = 979292160.

The previous prime is 2125756343. The next prime is 2125756349. The reversal of 2125756347 is 7436575212.

It is not a de Polignac number, because 2125756347 - 2² = 2125756343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2125756299 and 2125756308.

It is not an unprimeable number, because it can be changed into a prime (2125756343) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 73301929 + ... + 73301957.

It is an arithmetic number, because the mean of its divisors is an integer number (20903400).

Almost surely, 2^2125756347 is an apocalyptic number.

2125756347 is a deficient number, since it is larger than the sum of its proper divisors (1887696453).

2125756347 is a wasteful number, since it uses less digits than its factorization.

2125756347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 115 counting only the distinct ones).

The product of its digits is 352800, while the sum is 42.

The square root of 2125756347 is about 46105.9252916586. The cubic root of 2125756347 is about 1285.7933090882.

The spelling of 2125756347 in words is "two billion, one hundred twenty-five million, seven hundred fifty-six thousand, three hundred forty-seven".