1131615051 has 8 divisors (see below), whose sum is σ = 1724365824. Its totient is φ = 646637160.

The previous prime is 1131615011. The next prime is 1131615071. The reversal of 1131615051 is 1505161311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1131615051 - 2⁷ = 1131614923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131615011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26943195 + ... + 26943236.

It is an arithmetic number, because the mean of its divisors is an integer number (215545728).

Almost surely, 2^1131615051 is an apocalyptic number.

1131615051 is a deficient number, since it is larger than the sum of its proper divisors (592750773).

1131615051 is an equidigital number, since it uses as much as digits as its factorization.

1131615051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53886441.

The product of its (nonzero) digits is 450, while the sum is 24.

The square root of 1131615051 is about 33639.4864853791. The cubic root of 1131615051 is about 1042.0764269032.

Adding to 1131615051 its reverse (1505161311), we get a palindrome (2636776362).

The spelling of 1131615051 in words is "one billion, one hundred thirty-one million, six hundred fifteen thousand, fifty-one".