1020045361 has 4 divisors (see below), whose sum is σ = 1026303472. Its totient is φ = 1013787252.

The previous prime is 1020045353. The next prime is 1020045401. The reversal of 1020045361 is 1635400201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1020045361 - 2³ = 1020045353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020045461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3128811 + ... + 3129136.

It is an arithmetic number, because the mean of its divisors is an integer number (256575868).

Almost surely, 2^1020045361 is an apocalyptic number.

It is an amenable number.

1020045361 is a deficient number, since it is larger than the sum of its proper divisors (6258111).

1020045361 is an equidigital number, since it uses as much as digits as its factorization.

1020045361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6258110.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1020045361 is about 31938.1489914491. The cubic root of 1020045361 is about 1006.6376313692.

Adding to 1020045361 its reverse (1635400201), we get a palindrome (2655445562).

The spelling of 1020045361 in words is "one billion, twenty million, forty-five thousand, three hundred sixty-one".