1022052045 has 24 divisors (see below), whose sum is σ = 1902269664. Its totient is φ = 467223456.

The previous prime is 1022052037. The next prime is 1022052067. The reversal of 1022052045 is 5402502201.

It is a happy number.

It is not a de Polignac number, because 1022052045 - 2³ = 1022052037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 694539 + ... + 696008.

It is an arithmetic number, because the mean of its divisors is an integer number (79261236).

Almost surely, 2^1022052045 is an apocalyptic number.

1022052045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1022052045 is a deficient number, since it is larger than the sum of its proper divisors (880217619).

1022052045 is a wasteful number, since it uses less digits than its factorization.

1022052045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390569 (or 1390562 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1022052045 is about 31969.5487143625. The cubic root of 1022052045 is about 1007.2973015285.

Adding to 1022052045 its reverse (5402502201), we get a palindrome (6424554246).

The spelling of 1022052045 in words is "one billion, twenty-two million, fifty-two thousand, forty-five".