1055020145 has 8 divisors (see below), whose sum is σ = 1309680360. Its totient is φ = 814912000.

The previous prime is 1055020121. The next prime is 1055020171. The reversal of 1055020145 is 5410205501.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 236144689 + 818875456 = 15367^2 + 28616^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1055020145 - 2⁶ = 1055020081 is a prime.

It is a super-2 number, since 2×1055020145² = 2226135012711642050, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1055020145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3637856 + ... + 3638145.

It is an arithmetic number, because the mean of its divisors is an integer number (163710045).

Almost surely, 2^1055020145 is an apocalyptic number.

It is an amenable number.

1055020145 is a deficient number, since it is larger than the sum of its proper divisors (254660215).

1055020145 is an equidigital number, since it uses as much as digits as its factorization.

1055020145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7276035.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 1055020145 is about 32481.0736429694. The cubic root of 1055020145 is about 1018.0136097830.

Adding to 1055020145 its reverse (5410205501), we get a palindrome (6465225646).

The spelling of 1055020145 in words is "one billion, fifty-five million, twenty thousand, one hundred forty-five".