1020045455 has 32 divisors (see below), whose sum is σ = 1443451968. Its totient is φ = 682214400.

The previous prime is 1020045443. The next prime is 1020045461. The reversal of 1020045455 is 5545400201.

It is not a de Polignac number, because 1020045455 - 2¹² = 1020041359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198377 + ... + 203453.

It is an arithmetic number, because the mean of its divisors is an integer number (45107874).

Almost surely, 2^1020045455 is an apocalyptic number.

1020045455 is a deficient number, since it is larger than the sum of its proper divisors (423406513).

1020045455 is a wasteful number, since it uses less digits than its factorization.

1020045455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5387.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 1020045455 is about 31938.1504630434. The cubic root of 1020045455 is about 1006.6376622907.

Adding to 1020045455 its reverse (5545400201), we get a palindrome (6565445656).

It can be divided in two parts, 10200 and 45455, that added together give a palindrome (55655).

The spelling of 1020045455 in words is "one billion, twenty million, forty-five thousand, four hundred fifty-five".