2145753 has 6 divisors (see below), whose sum is σ = 3099434. Its totient is φ = 1430496.

The previous prime is 2145721. The next prime is 2145763. The reversal of 2145753 is 3575412.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2082249 + 63504 = 1443^2 + 252^2 .

It is not a de Polignac number, because 2145753 - 2⁵ = 2145721 is a prime.

It is a Duffinian number.

2145753 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2145713) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119200 + ... + 119217.

2^2145753 is an apocalyptic number.

It is an amenable number.

2145753 is a deficient number, since it is larger than the sum of its proper divisors (953681).

2145753 is a wasteful number, since it uses less digits than its factorization.

2145753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238423 (or 238420 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 2145753 is about 1464.8388989920. The cubic root of 2145753 is about 128.9812484011.

The spelling of 2145753 in words is "two million, one hundred forty-five thousand, seven hundred fifty-three".