1159669 has 4 divisors (see below), whose sum is σ = 1325344. Its totient is φ = 993996.

The previous prime is 1159663. The next prime is 1159709. The reversal of 1159669 is 9669511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9669511 = 1831 ⋅5281.

It is a cyclic number.

It is not a de Polignac number, because 1159669 - 2³ = 1159661 is a prime.

It is a super-2 number, since 2×1159669² = 2689664379122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159661) 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, 82827 + ... + 82840.

It is an arithmetic number, because the mean of its divisors is an integer number (331336).

2^1159669 is an apocalyptic number.

It is an amenable number.

1159669 is a deficient number, since it is larger than the sum of its proper divisors (165675).

1159669 is an equidigital number, since it uses as much as digits as its factorization.

1159669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165674.

The product of its digits is 14580, while the sum is 37.

The square root of 1159669 is about 1076.8792875713. The cubic root of 1159669 is about 105.0617626050.

The spelling of 1159669 in words is "one million, one hundred fifty-nine thousand, six hundred sixty-nine".