1230552143 has 2 divisors, whose sum is σ = 1230552144. Its totient is φ = 1230552142.

The previous prime is 1230552139. The next prime is 1230552209. The reversal of 1230552143 is 3412550321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1230552143 - 2² = 1230552139 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230552943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615276071 + 615276072.

It is an arithmetic number, because the mean of its divisors is an integer number (615276072).

Almost surely, 2^1230552143 is an apocalyptic number.

1230552143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230552143 is an equidigital number, since it uses as much as digits as its factorization.

1230552143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1230552143 is about 35079.2266590927. The cubic root of 1230552143 is about 1071.6015678746.

The spelling of 1230552143 in words is "one billion, two hundred thirty million, five hundred fifty-two thousand, one hundred forty-three".