1020201455 has 48 divisors (see below), whose sum is σ = 1581120000. Its totient is φ = 617595264.

The previous prime is 1020201443. The next prime is 1020201473. The reversal of 1020201455 is 5541020201.

It is not a de Polignac number, because 1020201455 - 2²⁴ = 1003424239 is a prime.

It is a super-2 number, since 2×1020201455² = 2081622017568234050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 132296 + ... + 139794.

It is an arithmetic number, because the mean of its divisors is an integer number (32940000).

Almost surely, 2^1020201455 is an apocalyptic number.

1020201455 is a deficient number, since it is larger than the sum of its proper divisors (560918545).

1020201455 is a wasteful number, since it uses less digits than its factorization.

1020201455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7560 (or 7547 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1020201455 is about 31940.5925899943. The cubic root of 1020201455 is about 1006.6889761708.

Adding to 1020201455 its reverse (5541020201), we get a palindrome (6561221656).

The spelling of 1020201455 in words is "one billion, twenty million, two hundred one thousand, four hundred fifty-five".