1020045001 has 8 divisors (see below), whose sum is σ = 1088856000. Its totient is φ = 952746480.

The previous prime is 1020044981. The next prime is 1020045007. The reversal of 1020045001 is 1005400201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020045001 - 2²⁷ = 885827273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020045007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376726 + ... + 379423.

It is an arithmetic number, because the mean of its divisors is an integer number (136107000).

Almost surely, 2^1020045001 is an apocalyptic number.

It is an amenable number.

1020045001 is a deficient number, since it is larger than the sum of its proper divisors (68810999).

1020045001 is an equidigital number, since it uses as much as digits as its factorization.

1020045001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756239.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1020045001 is about 31938.1433555553. The cubic root of 1020045001 is about 1006.6375129465.

Adding to 1020045001 its reverse (1005400201), we get a palindrome (2025445202).

The spelling of 1020045001 in words is "one billion, twenty million, forty-five thousand, one".