1157461559 has 4 divisors (see below), whose sum is σ = 1157530416. Its totient is φ = 1157392704.

The previous prime is 1157461553. The next prime is 1157461561. The reversal of 1157461559 is 9551647511.

It is a semiprime because it is the product of two primes, 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 1157461559 - 2¹² = 1157457463 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 (1157461553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9302 + ... + 49004.

It is an arithmetic number, because the mean of its divisors is an integer number (289382604).

Almost surely, 2^1157461559 is an apocalyptic number.

1157461559 is a deficient number, since it is larger than the sum of its proper divisors (68857).

1157461559 is an equidigital number, since it uses as much as digits as its factorization.

1157461559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68856.

The product of its digits is 189000, while the sum is 44.

The square root of 1157461559 is about 34021.4867253035. The cubic root of 1157461559 is about 1049.9505824059.

The spelling of 1157461559 in words is "one billion, one hundred fifty-seven million, four hundred sixty-one thousand, five hundred fifty-nine".