2145248251100 has 36 divisors (see below), whose sum is σ = 4720754758608. Its totient is φ = 846013392000.

The previous prime is 2145248251033. The next prime is 2145248251109. The reversal of 2145248251100 is 11528425412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145248251109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151066721 + ... + 151080920.

It is an arithmetic number, because the mean of its divisors is an integer number (131132076628).

Almost surely, 2^{2145248251100} is an apocalyptic number.

2145248251100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2145248251100 is an abundant number, since it is smaller than the sum of its proper divisors (2575506507508).

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

2145248251100 is a wasteful number, since it uses less digits than its factorization.

2145248251100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302147726 (or 302147719 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 35.

The spelling of 2145248251100 in words is "two trillion, one hundred forty-five billion, two hundred forty-eight million, two hundred fifty-one thousand, one hundred".