1195581 has 8 divisors (see below), whose sum is σ = 1637344. Its totient is φ = 775440.

The previous prime is 1195573. The next prime is 1195589. The reversal of 1195581 is 1855911.

It is an interprime number because it is at equal distance from previous prime (1195573) and next prime (1195589).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1195581 - 2³ = 1195573 is a prime.

It is a super-2 number, since 2×1195581² = 2858827855122, 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 (1195589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5275 + ... + 5496.

It is an arithmetic number, because the mean of its divisors is an integer number (204668).

2^1195581 is an apocalyptic number.

It is an amenable number.

1195581 is a deficient number, since it is larger than the sum of its proper divisors (441763).

1195581 is a wasteful number, since it uses less digits than its factorization.

1195581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10811.

The product of its digits is 1800, while the sum is 30.

The square root of 1195581 is about 1093.4262663756. The cubic root of 1195581 is about 106.1352551338.

The spelling of 1195581 in words is "one million, one hundred ninety-five thousand, five hundred eighty-one".