1131422454 has 48 divisors (see below), whose sum is σ = 2605897008. Its totient is φ = 353550336.

The previous prime is 1131422447. The next prime is 1131422473. The reversal of 1131422454 is 4542241311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71449 + ... + 85835.

It is an arithmetic number, because the mean of its divisors is an integer number (54289521).

Almost surely, 2^1131422454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131422454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1302948504).

1131422454 is an abundant number, since it is smaller than the sum of its proper divisors (1474474554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131422454 is a wasteful number, since it uses less digits than its factorization.

1131422454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14669 (or 14666 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1131422454 is about 33636.6237009602. The cubic root of 1131422454 is about 1042.0173042711.

Adding to 1131422454 its reverse (4542241311), we get a palindrome (5673663765).

The spelling of 1131422454 in words is "one billion, one hundred thirty-one million, four hundred twenty-two thousand, four hundred fifty-four".