1055543140 has 24 divisors (see below), whose sum is σ = 2313017280. Its totient is φ = 403859808.

The previous prime is 1055543129. The next prime is 1055543143. The reversal of 1055543140 is 413455501.

It is a super-2 number, since 2×1055543140² = 2228342640802119200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1055543099 and 1055543108.

It is not an unprimeable number, because it can be changed into a prime (1055543143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146870 + ... + 1147789.

It is an arithmetic number, because the mean of its divisors is an integer number (96375720).

Almost surely, 2^1055543140 is an apocalyptic number.

1055543140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055543140 is an abundant number, since it is smaller than the sum of its proper divisors (1257474140).

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

1055543140 is a wasteful number, since it uses less digits than its factorization.

1055543140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294691 (or 2294689 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1055543140 is about 32489.1234107663. The cubic root of 1055543140 is about 1018.1817986965.

Adding to 1055543140 its reverse (413455501), we get a palindrome (1468998641).

The spelling of 1055543140 in words is "one billion, fifty-five million, five hundred forty-three thousand, one hundred forty".