1115342141 has 4 divisors (see below), whose sum is σ = 1115706300. Its totient is φ = 1114977984.

The previous prime is 1115342119. The next prime is 1115342143. The reversal of 1115342141 is 1412435111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 857611225 + 257730916 = 29285^2 + 16054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1115342141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115342143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177446 + ... + 183623.

It is an arithmetic number, because the mean of its divisors is an integer number (278926575).

Almost surely, 2^1115342141 is an apocalyptic number.

It is an amenable number.

1115342141 is a deficient number, since it is larger than the sum of its proper divisors (364159).

1115342141 is an equidigital number, since it uses as much as digits as its factorization.

1115342141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364158.

The product of its digits is 480, while the sum is 23.

The square root of 1115342141 is about 33396.7384784802. The cubic root of 1115342141 is about 1037.0571827987.

Adding to 1115342141 its reverse (1412435111), we get a palindrome (2527777252).

The spelling of 1115342141 in words is "one billion, one hundred fifteen million, three hundred forty-two thousand, one hundred forty-one".