1131451422 has 16 divisors (see below), whose sum is σ = 2396014992. Its totient is φ = 354965120.

The previous prime is 1131451421. The next prime is 1131451427. The reversal of 1131451422 is 2241541311.

It is a junction number, because it is equal to n+sod(n) for n = 1131451392 and 1131451401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131451421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5546229 + ... + 5546432.

It is an arithmetic number, because the mean of its divisors is an integer number (149750937).

Almost surely, 2^1131451422 is an apocalyptic number.

1131451422 is an abundant number, since it is smaller than the sum of its proper divisors (1264563570).

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

1131451422 is a wasteful number, since it uses less digits than its factorization.

1131451422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11092683.

The product of its digits is 960, while the sum is 24.

The square root of 1131451422 is about 33637.0543002802. The cubic root of 1131451422 is about 1042.0261971769.

Adding to 1131451422 its reverse (2241541311), we get a palindrome (3372992733).

The spelling of 1131451422 in words is "one billion, one hundred thirty-one million, four hundred fifty-one thousand, four hundred twenty-two".