1131255454 has 12 divisors (see below), whose sum is σ = 1973925504. Its totient is φ = 484823724.

The previous prime is 1131255451. The next prime is 1131255457. The reversal of 1131255454 is 4545521311.

It is an interprime number because it is at equal distance from previous prime (1131255451) and next prime (1131255457).

It is a super-2 number, since 2×1131255454² = 2559477804409492232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131255451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5771614 + ... + 5771809.

It is an arithmetic number, because the mean of its divisors is an integer number (164493792).

Almost surely, 2^1131255454 is an apocalyptic number.

1131255454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1131255454 is a deficient number, since it is larger than the sum of its proper divisors (842670050).

1131255454 is a wasteful number, since it uses less digits than its factorization.

1131255454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11543439 (or 11543432 counting only the distinct ones).

The product of its digits is 12000, while the sum is 31.

The square root of 1131255454 is about 33634.1411961120. The cubic root of 1131255454 is about 1041.9660338691.

Adding to 1131255454 its reverse (4545521311), we get a palindrome (5676776765).

It can be divided in two parts, 11312 and 55454, that added together give a palindrome (66766).

The spelling of 1131255454 in words is "one billion, one hundred thirty-one million, two hundred fifty-five thousand, four hundred fifty-four".