1111995 has 16 divisors (see below), whose sum is σ = 1977120. Its totient is φ = 592992.

The previous prime is 1111991. The next prime is 1112003. The reversal of 1111995 is 5991111.

It is not a de Polignac number, because 1111995 - 2² = 1111991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1111991) 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, 3984 + ... + 4253.

It is an arithmetic number, because the mean of its divisors is an integer number (123570).

2^1111995 is an apocalyptic number.

1111995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1111995 is a deficient number, since it is larger than the sum of its proper divisors (865125).

1111995 is an equidigital number, since it uses as much as digits as its factorization.

1111995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8251 (or 8245 counting only the distinct ones).

The product of its digits is 405, while the sum is 27.

The square root of 1111995 is about 1054.5117353543. The cubic root of 1111995 is about 103.6018740686.

It can be divided in two parts, 111 and 1995, that multiplied together give a triangular number (221445 = T₆₆₅).

The spelling of 1111995 in words is "one million, one hundred eleven thousand, nine hundred ninety-five".