1145022505 has 32 divisors (see below), whose sum is σ = 1592680320. Its totient is φ = 781009920.

The previous prime is 1145022491. The next prime is 1145022523. The reversal of 1145022505 is 5052205411.

It is not a de Polignac number, because 1145022505 - 2⁷ = 1145022377 is a prime.

It is a super-2 number, since 2×1145022505² = 2622153073912950050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1145022505.

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, 285051 + ... + 289039.

It is an arithmetic number, because the mean of its divisors is an integer number (49771260).

Almost surely, 2^1145022505 is an apocalyptic number.

It is an amenable number.

1145022505 is a deficient number, since it is larger than the sum of its proper divisors (447657815).

1145022505 is a wasteful number, since it uses less digits than its factorization.

1145022505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4329.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1145022505 is about 33838.1811715701. The cubic root of 1145022505 is about 1046.1758107309.

Adding to 1145022505 its reverse (5052205411), we get a palindrome (6197227916).

The spelling of 1145022505 in words is "one billion, one hundred forty-five million, twenty-two thousand, five hundred five".