1055423140 has 12 divisors (see below), whose sum is σ = 2216388636. Its totient is φ = 422169248.

The previous prime is 1055423137. The next prime is 1055423177. The reversal of 1055423140 is 413245501.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 388957284 + 666465856 = 19722^2 + 25816^2 .

It is a super-2 number, since 2×1055423140² = 2227836008894919200, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 26385559 + ... + 26385598.

It is an arithmetic number, because the mean of its divisors is an integer number (184699053).

Almost surely, 2^1055423140 is an apocalyptic number.

1055423140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055423140 is an abundant number, since it is smaller than the sum of its proper divisors (1160965496).

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

1055423140 is a wasteful number, since it uses less digits than its factorization.

1055423140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52771166 (or 52771164 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1055423140 is about 32487.2765863807. The cubic root of 1055423140 is about 1018.1432130491.

Adding to 1055423140 its reverse (413245501), we get a palindrome (1468668641).

It can be divided in two parts, 105 and 5423140, that added together give a palindrome (5423245).

The spelling of 1055423140 in words is "one billion, fifty-five million, four hundred twenty-three thousand, one hundred forty".