1022040545 has 4 divisors (see below), whose sum is σ = 1226448660. Its totient is φ = 817632432.

The previous prime is 1022040541. The next prime is 1022040557. The reversal of 1022040545 is 5450402201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5450402201 = 463 ⋅11771927.

It can be written as a sum of positive squares in 2 ways, for example, as 709316689 + 312723856 = 26633^2 + 17684^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022040545 - 2² = 1022040541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1022040545.

It is not an unprimeable number, because it can be changed into a prime (1022040541) 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 3 ways as a sum of consecutive naturals, for example, 102204050 + ... + 102204059.

It is an arithmetic number, because the mean of its divisors is an integer number (306612165).

Almost surely, 2^1022040545 is an apocalyptic number.

It is an amenable number.

1022040545 is a deficient number, since it is larger than the sum of its proper divisors (204408115).

1022040545 is an equidigital number, since it uses as much as digits as its factorization.

1022040545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204408114.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 1022040545 is about 31969.3688552026. The cubic root of 1022040545 is about 1007.2935235205.

Adding to 1022040545 its reverse (5450402201), we get a palindrome (6472442746).

The spelling of 1022040545 in words is "one billion, twenty-two million, forty thousand, five hundred forty-five".