2145255443 has 2 divisors, whose sum is σ = 2145255444. Its totient is φ = 2145255442.

The previous prime is 2145255421. The next prime is 2145255457. The reversal of 2145255443 is 3445525412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2145255443 - 2²⁶ = 2078146579 is a prime.

It is a super-2 number, since 2×2145255443² = 9204241831442252498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2145255493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072627721 + 1072627722.

It is an arithmetic number, because the mean of its divisors is an integer number (1072627722).

Almost surely, 2^2145255443 is an apocalyptic number.

2145255443 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145255443 is an equidigital number, since it uses as much as digits as its factorization.

2145255443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96000, while the sum is 35.

The square root of 2145255443 is about 46316.9023467675. The cubic root of 2145255443 is about 1289.7127824394.

The spelling of 2145255443 in words is "two billion, one hundred forty-five million, two hundred fifty-five thousand, four hundred forty-three".