2125012145 has 8 divisors (see below), whose sum is σ = 2593235520. Its totient is φ = 1671195760.

The previous prime is 2125012139. The next prime is 2125012151. The reversal of 2125012145 is 5412105212.

It is an interprime number because it is at equal distance from previous prime (2125012139) and next prime (2125012151).

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

It is not a de Polignac number, because 2125012145 - 2¹² = 2125008049 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2125012145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3601421 + ... + 3602010.

It is an arithmetic number, because the mean of its divisors is an integer number (324154440).

Almost surely, 2^2125012145 is an apocalyptic number.

It is an amenable number.

2125012145 is a deficient number, since it is larger than the sum of its proper divisors (468223375).

2125012145 is an equidigital number, since it uses as much as digits as its factorization.

2125012145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7203495.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2125012145 is about 46097.8540172967. The cubic root of 2125012145 is about 1285.6432445962.

Adding to 2125012145 its reverse (5412105212), we get a palindrome (7537117357).

The spelling of 2125012145 in words is "two billion, one hundred twenty-five million, twelve thousand, one hundred forty-five".