1156495 has 4 divisors (see below), whose sum is σ = 1387800. Its totient is φ = 925192.

The previous prime is 1156483. The next prime is 1156501. The reversal of 1156495 is 5946511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1156495 - 2⁷ = 1156367 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

1156495 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115645 + ... + 115654.

It is an arithmetic number, because the mean of its divisors is an integer number (346950).

2^1156495 is an apocalyptic number.

1156495 is a deficient number, since it is larger than the sum of its proper divisors (231305).

1156495 is an equidigital number, since it uses as much as digits as its factorization.

1156495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231304.

The product of its digits is 5400, while the sum is 31.

The square root of 1156495 is about 1075.4045750321. The cubic root of 1156495 is about 104.9658241005.

The spelling of 1156495 in words is "one million, one hundred fifty-six thousand, four hundred ninety-five".