1055213145 has 48 divisors (see below), whose sum is σ = 2092896000. Its totient is φ = 481790592.

The previous prime is 1055213143. The next prime is 1055213161. The reversal of 1055213145 is 5413125501.

1055213145 is a `hidden beast` number, since 105 + 521 + 31 + 4 + 5 = 666.

It is not a de Polignac number, because 1055213145 - 2¹ = 1055213143 is a prime.

It is a super-2 number, since 2×1055213145² = 2226949562761582050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055213143) 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 47 ways as a sum of consecutive naturals, for example, 350356 + ... + 353354.

It is an arithmetic number, because the mean of its divisors is an integer number (43602000).

Almost surely, 2^1055213145 is an apocalyptic number.

1055213145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1055213145 is a deficient number, since it is larger than the sum of its proper divisors (1037682855).

1055213145 is a wasteful number, since it uses less digits than its factorization.

1055213145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4134 (or 4131 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1055213145 is about 32484.0444680154. The cubic root of 1055213145 is about 1018.0756827358.

Adding to 1055213145 its reverse (5413125501), we get a palindrome (6468338646).

The spelling of 1055213145 in words is "one billion, fifty-five million, two hundred thirteen thousand, one hundred forty-five".