2125397316 has 96 divisors (see below), whose sum is σ = 5779873792. Its totient is φ = 595330560.

The previous prime is 2125397311. The next prime is 2125397357. The reversal of 2125397316 is 6137935212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2125397311) 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, 1355565 + ... + 1357131.

Almost surely, 2^2125397316 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 2125397316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2889936896).

2125397316 is an abundant number, since it is smaller than the sum of its proper divisors (3654476476).

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

2125397316 is a wasteful number, since it uses less digits than its factorization.

2125397316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889 (or 1887 counting only the distinct ones).

The product of its digits is 68040, while the sum is 39.

The square root of 2125397316 is about 46102.0315821331. The cubic root of 2125397316 is about 1285.7209167136.

The spelling of 2125397316 in words is "two billion, one hundred twenty-five million, three hundred ninety-seven thousand, three hundred sixteen".