1022123445 has 16 divisors (see below), whose sum is σ = 1869025920. Its totient is φ = 467256384.

The previous prime is 1022123441. The next prime is 1022123477. The reversal of 1022123445 is 5443212201.

It is not a de Polignac number, because 1022123445 - 2² = 1022123441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022123441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4867150 + ... + 4867359.

It is an arithmetic number, because the mean of its divisors is an integer number (116814120).

Almost surely, 2^1022123445 is an apocalyptic number.

1022123445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1022123445 is a deficient number, since it is larger than the sum of its proper divisors (846902475).

1022123445 is an equidigital number, since it uses as much as digits as its factorization.

1022123445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9734524.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1022123445 is about 31970.6653825034. The cubic root of 1022123445 is about 1007.3207573962.

Adding to 1022123445 its reverse (5443212201), we get a palindrome (6465335646).

The spelling of 1022123445 in words is "one billion, twenty-two million, one hundred twenty-three thousand, four hundred forty-five".