1055142231 has 32 divisors (see below), whose sum is σ = 1672780032. Its totient is φ = 583157760.

The previous prime is 1055142229. The next prime is 1055142241. The reversal of 1055142231 is 1322415501.

It is a happy number.

It is not a de Polignac number, because 1055142231 - 2¹ = 1055142229 is a prime.

It is a super-3 number, since 3×1055142231³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055142241) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 20791 + ... + 50423.

It is an arithmetic number, because the mean of its divisors is an integer number (52274376).

Almost surely, 2^1055142231 is an apocalyptic number.

1055142231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1055142231 is a deficient number, since it is larger than the sum of its proper divisors (617637801).

1055142231 is a wasteful number, since it uses less digits than its factorization.

1055142231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29743.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1055142231 is about 32482.9529291904. The cubic root of 1055142231 is about 1018.0528761472.

Adding to 1055142231 its reverse (1322415501), we get a palindrome (2377557732).

The spelling of 1055142231 in words is "one billion, fifty-five million, one hundred forty-two thousand, two hundred thirty-one".