1165916 has 36 divisors (see below), whose sum is σ = 2322600. Its totient is φ = 510048.

The previous prime is 1165909. The next prime is 1165919. The reversal of 1165916 is 6195611.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40190 + ... + 40218.

2^1165916 is an apocalyptic number.

It is an amenable number.

1165916 is a deficient number, since it is larger than the sum of its proper divisors (1156684).

1165916 is a wasteful number, since it uses less digits than its factorization.

1165916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 73 counting only the distinct ones).

The product of its digits is 1620, while the sum is 29.

The square root of 1165916 is about 1079.7759026761. The cubic root of 1165916 is about 105.2500766376.

1165916 divided by its sum of digits (29) gives a palindrome (40204).

The spelling of 1165916 in words is "one million, one hundred sixty-five thousand, nine hundred sixteen".