2150125400 has 24 divisors (see below), whose sum is σ = 4999042020. Its totient is φ = 860050080.

The previous prime is 2150125381. The next prime is 2150125409. The reversal of 2150125400 is 45210512.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150125409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5375114 + ... + 5375513.

Almost surely, 2^2150125400 is an apocalyptic number.

2150125400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2150125400 is an abundant number, since it is smaller than the sum of its proper divisors (2848916620).

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

2150125400 is a wasteful number, since it uses less digits than its factorization.

2150125400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10750643 (or 10750634 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 2150125400 is about 46369.4446807378. Note that the first 3 decimals coincide. The cubic root of 2150125400 is about 1290.6879730738.

Adding to 2150125400 its reverse (45210512), we get a palindrome (2195335912).

The spelling of 2150125400 in words is "two billion, one hundred fifty million, one hundred twenty-five thousand, four hundred".