1115504141 has 4 divisors (see below), whose sum is σ = 1115594400. Its totient is φ = 1115413884.

The previous prime is 1115504123. The next prime is 1115504149. The reversal of 1115504141 is 1414055111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1115504141 - 2⁶ = 1115504077 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 (1115504149) 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, 22961 + ... + 52518.

It is an arithmetic number, because the mean of its divisors is an integer number (278898600).

Almost surely, 2^1115504141 is an apocalyptic number.

It is an amenable number.

1115504141 is a deficient number, since it is larger than the sum of its proper divisors (90259).

1115504141 is an equidigital number, since it uses as much as digits as its factorization.

1115504141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90258.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 1115504141 is about 33399.1637769571. The cubic root of 1115504141 is about 1037.1073901519.

Adding to 1115504141 its reverse (1414055111), we get a palindrome (2529559252).

The spelling of 1115504141 in words is "one billion, one hundred fifteen million, five hundred four thousand, one hundred forty-one".