1131420454 has 16 divisors (see below), whose sum is σ = 1752791040. Its totient is φ = 547175880.

The previous prime is 1131420449. The next prime is 1131420457. The reversal of 1131420454 is 4540241311.

It is a super-2 number, since 2×1131420454² = 2560224487459132232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131420457) 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, 161427 + ... + 168289.

It is an arithmetic number, because the mean of its divisors is an integer number (109549440).

Almost surely, 2^1131420454 is an apocalyptic number.

1131420454 is a deficient number, since it is larger than the sum of its proper divisors (621370586).

1131420454 is a wasteful number, since it uses less digits than its factorization.

1131420454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9555.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1131420454 is about 33636.5939714472. The cubic root of 1131420454 is about 1042.0166902842.

Adding to 1131420454 its reverse (4540241311), we get a palindrome (5671661765).

The spelling of 1131420454 in words is "one billion, one hundred thirty-one million, four hundred twenty thousand, four hundred fifty-four".