1115402143 has 2 divisors, whose sum is σ = 1115402144. Its totient is φ = 1115402142.

The previous prime is 1115402137. The next prime is 1115402149. The reversal of 1115402143 is 3412045111.

It is a balanced prime because it is at equal distance from previous prime (1115402137) and next prime (1115402149).

It is an emirp because it is prime and its reverse (3412045111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1115402143 - 2²¹ = 1113304991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115402149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557701071 + 557701072.

It is an arithmetic number, because the mean of its divisors is an integer number (557701072).

Almost surely, 2^1115402143 is an apocalyptic number.

1115402143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115402143 is an equidigital number, since it uses as much as digits as its factorization.

1115402143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1115402143 is about 33397.6367876531. The cubic root of 1115402143 is about 1037.0757793014.

Adding to 1115402143 its reverse (3412045111), we get a palindrome (4527447254).

The spelling of 1115402143 in words is "one billion, one hundred fifteen million, four hundred two thousand, one hundred forty-three".