2145300 has 36 divisors (see below), whose sum is σ = 6207936. Its totient is φ = 572000.

The previous prime is 2145289. The next prime is 2145307. The reversal of 2145300 is 35412.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2145300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3276 + ... + 3875.

2^2145300 is an apocalyptic number.

2145300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2145300 is an abundant number, since it is smaller than the sum of its proper divisors (4062636).

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

2145300 is a wasteful number, since it uses less digits than its factorization.

2145300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7168 (or 7161 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2145300 is about 1464.6842663182. The cubic root of 2145300 is about 128.9721711498.

The spelling of 2145300 in words is "two million, one hundred forty-five thousand, three hundred".