1126765 has 4 divisors (see below), whose sum is σ = 1352124. Its totient is φ = 901408.

The previous prime is 1126759. The next prime is 1126771. The reversal of 1126765 is 5676211.

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

It is an interprime number because it is at equal distance from previous prime (1126759) and next prime (1126771).

It can be written as a sum of positive squares in 2 ways, for example, as 546121 + 580644 = 739^2 + 762^2 .

It is a cyclic number.

It is not a de Polignac number, because 1126765 - 2⁹ = 1126253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112672 + ... + 112681.

It is an arithmetic number, because the mean of its divisors is an integer number (338031).

2^1126765 is an apocalyptic number.

It is an amenable number.

1126765 is a deficient number, since it is larger than the sum of its proper divisors (225359).

1126765 is an equidigital number, since it uses as much as digits as its factorization.

1126765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225358.

The product of its digits is 2520, while the sum is 28.

The square root of 1126765 is about 1061.4918746745. The cubic root of 1126765 is about 104.0585530732.

It can be divided in two parts, 1126 and 765, that added together give a triangular number (1891 = T₆₁).

The spelling of 1126765 in words is "one million, one hundred twenty-six thousand, seven hundred sixty-five".