143648269 has 2 divisors, whose sum is σ = 143648270. Its totient is φ = 143648268.

The previous prime is 143648243. The next prime is 143648273. The reversal of 143648269 is 962846341.

It is a happy number.

143648269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140707044 + 2941225 = 11862^2 + 1715^2 .

It is a cyclic number.

It is not a de Polignac number, because 143648269 - 2⁵ = 143648237 is a prime.

It is a super-2 number, since 2×143648269² = 41269650373392722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143648969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71824134 + 71824135.

It is an arithmetic number, because the mean of its divisors is an integer number (71824135).

Almost surely, 2^143648269 is an apocalyptic number.

It is an amenable number.

143648269 is a deficient number, since it is larger than the sum of its proper divisors (1).

143648269 is an equidigital number, since it uses as much as digits as its factorization.

143648269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 43.

The square root of 143648269 is about 11985.3355814512. The cubic root of 143648269 is about 523.7211735036.

The spelling of 143648269 in words is "one hundred forty-three million, six hundred forty-eight thousand, two hundred sixty-nine".