1020071455 has 16 divisors (see below), whose sum is σ = 1328320224. Its totient is φ = 747527040.

The previous prime is 1020071407. The next prime is 1020071471. The reversal of 1020071455 is 5541700201.

It is not a de Polignac number, because 1020071455 - 2⁹ = 1020070943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51384 + ... + 68413.

It is an arithmetic number, because the mean of its divisors is an integer number (83020014).

Almost surely, 2^1020071455 is an apocalyptic number.

1020071455 is a deficient number, since it is larger than the sum of its proper divisors (308248769).

1020071455 is a wasteful number, since it uses less digits than its factorization.

1020071455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119946.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 1020071455 is about 31938.5574971695. The cubic root of 1020071455 is about 1006.6462149674.

Adding to 1020071455 its reverse (5541700201), we get a palindrome (6561771656).

The spelling of 1020071455 in words is "one billion, twenty million, seventy-one thousand, four hundred fifty-five".