2145353 has 4 divisors (see below), whose sum is σ = 2451840. Its totient is φ = 1838868.

The previous prime is 2145343. The next prime is 2145359. The reversal of 2145353 is 3535412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2145353 - 2⁴ = 2145337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153233 + ... + 153246.

It is an arithmetic number, because the mean of its divisors is an integer number (612960).

2^2145353 is an apocalyptic number.

It is an amenable number.

2145353 is a deficient number, since it is larger than the sum of its proper divisors (306487).

2145353 is an equidigital number, since it uses as much as digits as its factorization.

2145353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306486.

The product of its digits is 1800, while the sum is 23.

The square root of 2145353 is about 1464.7023588429. The cubic root of 2145353 is about 128.9732332342.

The spelling of 2145353 in words is "two million, one hundred forty-five thousand, three hundred fifty-three".