1109146965 has 64 divisors (see below), whose sum is σ = 1893749760. Its totient is φ = 553512960.

The previous prime is 1109146943. The next prime is 1109146981. The reversal of 1109146965 is 5696419011.

It is not a de Polignac number, because 1109146965 - 2⁵ = 1109146933 is a prime.

It is a super-2 number, since 2×1109146965² = 2460413979937422450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1797337 + ... + 1797953.

It is an arithmetic number, because the mean of its divisors is an integer number (29589840).

Almost surely, 2^1109146965 is an apocalyptic number.

1109146965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1109146965 is a deficient number, since it is larger than the sum of its proper divisors (784602795).

1109146965 is a wasteful number, since it uses less digits than its factorization.

1109146965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782.

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 1109146965 is about 33303.8581098347. The cubic root of 1109146965 is about 1035.1335028144.

It can be divided in two parts, 1109146 and 965, that added together give a palindrome (1110111).

The spelling of 1109146965 in words is "one billion, one hundred nine million, one hundred forty-six thousand, nine hundred sixty-five".