1123154141 has 4 divisors (see below), whose sum is σ = 1126697532. Its totient is φ = 1119610752.

The previous prime is 1123154119. The next prime is 1123154161. The reversal of 1123154141 is 1414513211.

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 439070116 + 684084025 = 20954^2 + 26155^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123154141 - 2⁶ = 1123154077 is a prime.

It is a super-2 number, since 2×1123154141² = 2522950448890895762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123154161) 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, 1771220 + ... + 1771853.

It is an arithmetic number, because the mean of its divisors is an integer number (281674383).

Almost surely, 2^1123154141 is an apocalyptic number.

It is an amenable number.

1123154141 is a deficient number, since it is larger than the sum of its proper divisors (3543391).

1123154141 is an equidigital number, since it uses as much as digits as its factorization.

1123154141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543390.

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

The square root of 1123154141 is about 33513.4919248950. The cubic root of 1123154141 is about 1039.4727791869.

Adding to 1123154141 its reverse (1414513211), we get a palindrome (2537667352).

The spelling of 1123154141 in words is "one billion, one hundred twenty-three million, one hundred fifty-four thousand, one hundred forty-one".