1181422 has 16 divisors (see below), whose sum is σ = 1959552. Its totient is φ = 529720.

The previous prime is 1181413. The next prime is 1181437. The reversal of 1181422 is 2241811.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1181422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1503 + ... + 2149.

It is an arithmetic number, because the mean of its divisors is an integer number (122472).

2^1181422 is an apocalyptic number.

1181422 is a deficient number, since it is larger than the sum of its proper divisors (778130).

1181422 is a wasteful number, since it uses less digits than its factorization.

1181422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743.

The product of its digits is 128, while the sum is 19.

The square root of 1181422 is about 1086.9323806015. The cubic root of 1181422 is about 105.7146114637.

It can be divided in two parts, 118 and 1422, that added together give a triangular number (1540 = T₅₅).

The spelling of 1181422 in words is "one million, one hundred eighty-one thousand, four hundred twenty-two".