2140245 has 24 divisors (see below), whose sum is σ = 3744000. Its totient is φ = 1130976.

The previous prime is 2140231. The next prime is 2140253. The reversal of 2140245 is 5420412.

It is not a de Polignac number, because 2140245 - 2⁹ = 2139733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8836 + ... + 9074.

It is an arithmetic number, because the mean of its divisors is an integer number (156000).

2^2140245 is an apocalyptic number.

It is an amenable number.

2140245 is a deficient number, since it is larger than the sum of its proper divisors (1603755).

2140245 is a wasteful number, since it uses less digits than its factorization.

2140245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2140245 is about 1462.9576207122. The cubic root of 2140245 is about 128.8707918452.

Adding to 2140245 its reverse (5420412), we get a palindrome (7560657).

The spelling of 2140245 in words is "two million, one hundred forty thousand, two hundred forty-five".