1235145143 has 2 divisors, whose sum is σ = 1235145144. Its totient is φ = 1235145142.

The previous prime is 1235145139. The next prime is 1235145151. The reversal of 1235145143 is 3415415321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1235145143 - 2² = 1235145139 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1235145133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617572571 + 617572572.

It is an arithmetic number, because the mean of its divisors is an integer number (617572572).

Almost surely, 2^1235145143 is an apocalyptic number.

1235145143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235145143 is an equidigital number, since it uses as much as digits as its factorization.

1235145143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 29.

The square root of 1235145143 is about 35144.6317806859. The cubic root of 1235145143 is about 1072.9331530826.

The spelling of 1235145143 in words is "one billion, two hundred thirty-five million, one hundred forty-five thousand, one hundred forty-three".