2145023 has 2 divisors, whose sum is σ = 2145024. Its totient is φ = 2145022.

The previous prime is 2144999. The next prime is 2145047. The reversal of 2145023 is 3205412.

It is a balanced prime because it is at equal distance from previous prime (2144999) and next prime (2145047).

It is a cyclic number.

It is not a de Polignac number, because 2145023 - 2¹⁶ = 2079487 is a prime.

It is a super-2 number, since 2×2145023² = 9202247341058, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 2144992 and 2145010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072511 + 1072512.

It is an arithmetic number, because the mean of its divisors is an integer number (1072512).

2^2145023 is an apocalyptic number.

2145023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145023 is an equidigital number, since it uses as much as digits as its factorization.

2145023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2145023 is about 1464.5897036372. The cubic root of 2145023 is about 128.9666199714.

The spelling of 2145023 in words is "two million, one hundred forty-five thousand, twenty-three".