2125870385 has 8 divisors (see below), whose sum is σ = 2685310080. Its totient is φ = 1611185904.

The previous prime is 2125870367. The next prime is 2125870387. The reversal of 2125870385 is 5830785212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2125870385 - 2⁸ = 2125870129 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2125870387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11188697 + ... + 11188886.

It is an arithmetic number, because the mean of its divisors is an integer number (335663760).

Almost surely, 2^2125870385 is an apocalyptic number.

It is an amenable number.

2125870385 is a deficient number, since it is larger than the sum of its proper divisors (559439695).

2125870385 is a wasteful number, since it uses less digits than its factorization.

2125870385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22377607.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 2125870385 is about 46107.1619707828. The cubic root of 2125870385 is about 1285.8163011675.

The spelling of 2125870385 in words is "two billion, one hundred twenty-five million, eight hundred seventy thousand, three hundred eighty-five".