1123741581 has 8 divisors (see below), whose sum is σ = 1498505280. Its totient is φ = 749069472.

The previous prime is 1123741459. The next prime is 1123741589. The reversal of 1123741581 is 1851473211.

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

It is not a de Polignac number, because 1123741581 - 2¹⁰ = 1123740557 is a prime.

It is a super-2 number, since 2×1123741581² = 2525590281736759122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123741589) 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 7 ways as a sum of consecutive naturals, for example, 14425 + ... + 49553.

It is an arithmetic number, because the mean of its divisors is an integer number (187313160).

Almost surely, 2^1123741581 is an apocalyptic number.

It is an amenable number.

1123741581 is a deficient number, since it is larger than the sum of its proper divisors (374763699).

1123741581 is a wasteful number, since it uses less digits than its factorization.

1123741581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45795.

The product of its digits is 6720, while the sum is 33.

The square root of 1123741581 is about 33522.2550106642. The cubic root of 1123741581 is about 1039.6539717291.

The spelling of 1123741581 in words is "one billion, one hundred twenty-three million, seven hundred forty-one thousand, five hundred eighty-one".