1195551 has 18 divisors (see below), whose sum is σ = 2009592. Its totient is φ = 682920.

The previous prime is 1195549. The next prime is 1195561. The reversal of 1195551 is 1555911.

It is not a de Polignac number, because 1195551 - 2¹ = 1195549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1195501) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 915 + ... + 1796.

It is an arithmetic number, because the mean of its divisors is an integer number (111644).

2^1195551 is an apocalyptic number.

1195551 is a deficient number, since it is larger than the sum of its proper divisors (814041).

1195551 is a wasteful number, since it uses less digits than its factorization.

1195551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731 (or 2721 counting only the distinct ones).

The product of its digits is 1125, while the sum is 27.

The square root of 1195551 is about 1093.4125479434. The cubic root of 1195551 is about 106.1343673968.

The spelling of 1195551 in words is "one million, one hundred ninety-five thousand, five hundred fifty-one".