1162220136 has 128 divisors (see below), whose sum is σ = 3699855360. Its totient is φ = 295430400.

The previous prime is 1162220099. The next prime is 1162220141. The reversal of 1162220136 is 6310222611.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 31 ways as a sum of consecutive naturals, for example, 80166 + ... + 93546.

It is an arithmetic number, because the mean of its divisors is an integer number (28905120).

Almost surely, 2^1162220136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1162220136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1849927680).

1162220136 is an abundant number, since it is smaller than the sum of its proper divisors (2537635224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1162220136 is a wasteful number, since it uses less digits than its factorization.

1162220136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13455 (or 13451 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1162220136 is about 34091.3498706050. The cubic root of 1162220136 is about 1051.3874737163.

Adding to 1162220136 its reverse (6310222611), we get a palindrome (7472442747).

The spelling of 1162220136 in words is "one billion, one hundred sixty-two million, two hundred twenty thousand, one hundred thirty-six".