2245739 has 2 divisors, whose sum is σ = 2245740. Its totient is φ = 2245738.

The previous prime is 2245723. The next prime is 2245759. The reversal of 2245739 is 9375422.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2245739 - 2⁴ = 2245723 is a prime.

It is a super-2 number, since 2×2245739² = 10086687312242, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (2245759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1122869 + 1122870.

It is an arithmetic number, because the mean of its divisors is an integer number (1122870).

2^2245739 is an apocalyptic number.

2245739 is a deficient number, since it is larger than the sum of its proper divisors (1).

2245739 is an equidigital number, since it uses as much as digits as its factorization.

2245739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 32.

The square root of 2245739 is about 1498.5789935803. The cubic root of 2245739 is about 130.9542990751.

The spelling of 2245739 in words is "two million, two hundred forty-five thousand, seven hundred thirty-nine".