2145288 has 16 divisors (see below), whose sum is σ = 5363280. Its totient is φ = 715088.

The previous prime is 2145287. The next prime is 2145289. The reversal of 2145288 is 8825412.

It is an interprime number because it is at equal distance from previous prime (2145287) and next prime (2145289).

It is a super-3 number, since 3×2145288³ = 29619523333105583616, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2145287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44670 + ... + 44717.

It is an arithmetic number, because the mean of its divisors is an integer number (335205).

2^2145288 is an apocalyptic number.

It is an amenable number.

2145288 is an abundant number, since it is smaller than the sum of its proper divisors (3217992).

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

2145288 is a wasteful number, since it uses less digits than its factorization.

2145288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89396 (or 89392 counting only the distinct ones).

The product of its digits is 5120, while the sum is 30.

The square root of 2145288 is about 1464.6801698664. The cubic root of 2145288 is about 128.9719306754.

The spelling of 2145288 in words is "two million, one hundred forty-five thousand, two hundred eighty-eight".