1154134420 has 48 divisors (see below), whose sum is σ = 2628875088. Its totient is φ = 423895040.

The previous prime is 1154134417. The next prime is 1154134447. The reversal of 1154134420 is 244314511.

It can be written as a sum of positive squares in 8 ways, for example, as 37636 + 1154096784 = 194^2 + 33972^2 .

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 27457 + ... + 55336.

It is an arithmetic number, because the mean of its divisors is an integer number (54768231).

Almost surely, 2^1154134420 is an apocalyptic number.

1154134420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1154134420 is an abundant number, since it is smaller than the sum of its proper divisors (1474740668).

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

1154134420 is a wasteful number, since it uses less digits than its factorization.

1154134420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82860 (or 82858 counting only the distinct ones).

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

The square root of 1154134420 is about 33972.5539222473. The cubic root of 1154134420 is about 1048.9435845006.

Adding to 1154134420 its reverse (244314511), we get a palindrome (1398448931).

The spelling of 1154134420 in words is "one billion, one hundred fifty-four million, one hundred thirty-four thousand, four hundred twenty".