1172101044 has 24 divisors (see below), whose sum is σ = 2739108960. Its totient is φ = 390099424.

The previous prime is 1172101039. The next prime is 1172101069. The reversal of 1172101044 is 4401012711.

It is a self number, because there is not a number n which added to its sum of digits gives 1172101044.

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, 66954 + ... + 82625.

It is an arithmetic number, because the mean of its divisors is an integer number (114129540).

Almost surely, 2^1172101044 is an apocalyptic number.

It is an amenable number.

1172101044 is an abundant number, since it is smaller than the sum of its proper divisors (1567007916).

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

1172101044 is a wasteful number, since it uses less digits than its factorization.

1172101044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150239 (or 150237 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 1172101044 is about 34235.9612688179. The cubic root of 1172101044 is about 1054.3586149645.

Adding to 1172101044 its reverse (4401012711), we get a palindrome (5573113755).

The spelling of 1172101044 in words is "one billion, one hundred seventy-two million, one hundred one thousand, forty-four".