1026220545 has 48 divisors (see below), whose sum is σ = 2035912320. Its totient is φ = 468433152.

The previous prime is 1026220537. The next prime is 1026220583. The reversal of 1026220545 is 5450226201.

It is not a de Polignac number, because 1026220545 - 2³ = 1026220537 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 252822 + ... + 256848.

It is an arithmetic number, because the mean of its divisors is an integer number (42414840).

Almost surely, 2^1026220545 is an apocalyptic number.

1026220545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1026220545 is a deficient number, since it is larger than the sum of its proper divisors (1009691775).

1026220545 is a wasteful number, since it uses less digits than its factorization.

1026220545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4854 (or 4851 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1026220545 is about 32034.6772264058. The cubic root of 1026220545 is about 1008.6648845879.

Adding to 1026220545 its reverse (5450226201), we get a palindrome (6476446746).

The spelling of 1026220545 in words is "one billion, twenty-six million, two hundred twenty thousand, five hundred forty-five".