1145162085 has 16 divisors (see below), whose sum is σ = 1834824960. Its totient is φ = 609897920.

The previous prime is 1145162071. The next prime is 1145162087. The reversal of 1145162085 is 5802615411.

It is not a de Polignac number, because 1145162085 - 2⁴ = 1145162069 is a prime.

It is a super-2 number, since 2×1145162085² = 2622792401843094450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145162087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42306 + ... + 63875.

It is an arithmetic number, because the mean of its divisors is an integer number (114676560).

Almost surely, 2^1145162085 is an apocalyptic number.

1145162085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1145162085 is a deficient number, since it is larger than the sum of its proper divisors (689662875).

1145162085 is a wasteful number, since it uses less digits than its factorization.

1145162085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106908.

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 1145162085 is about 33840.2435718185. The cubic root of 1145162085 is about 1046.2183191491.

Adding to 1145162085 its reverse (5802615411), we get a palindrome (6947777496).

It can be divided in two parts, 11451 and 62085, that added together give a triangular number (73536 = T₃₈₃).

The spelling of 1145162085 in words is "one billion, one hundred forty-five million, one hundred sixty-two thousand, eighty-five".