1161622 has 32 divisors (see below), whose sum is σ = 2292480. Its totient is φ = 427680.

The previous prime is 1161619. The next prime is 1161637. The reversal of 1161622 is 2261611.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 1161622.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2728 + ... + 3124.

It is an arithmetic number, because the mean of its divisors is an integer number (71640).

2^1161622 is an apocalyptic number.

1161622 is a deficient number, since it is larger than the sum of its proper divisors (1130858).

1161622 is a wasteful number, since it uses less digits than its factorization.

1161622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436.

The product of its digits is 144, while the sum is 19.

The square root of 1161622 is about 1077.7856929835. The cubic root of 1161622 is about 105.1207077423.

It can be divided in two parts, 116162 and 2, that multiplied together give a square (232324 = 482²).

The spelling of 1161622 in words is "one million, one hundred sixty-one thousand, six hundred twenty-two".