1136723 has 4 divisors (see below), whose sum is σ = 1299120. Its totient is φ = 974328.

The previous prime is 1136719. The next prime is 1136741. The reversal of 1136723 is 3276311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3276311 = 857 ⋅3823.

It is a cyclic number.

It is not a de Polignac number, because 1136723 - 2² = 1136719 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (1136123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81188 + ... + 81201.

It is an arithmetic number, because the mean of its divisors is an integer number (324780).

2^1136723 is an apocalyptic number.

1136723 is a deficient number, since it is larger than the sum of its proper divisors (162397).

1136723 is an equidigital number, since it uses as much as digits as its factorization.

1136723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162396.

The product of its digits is 756, while the sum is 23.

The square root of 1136723 is about 1066.1721249404. The cubic root of 1136723 is about 104.3642001806.

The spelling of 1136723 in words is "one million, one hundred thirty-six thousand, seven hundred twenty-three".