1161154104 has 128 divisors (see below), whose sum is σ = 3331860480. Its totient is φ = 333964800.

The previous prime is 1161154081. The next prime is 1161154121. The reversal of 1161154104 is 4014511611.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 432414 + ... + 435090.

It is an arithmetic number, because the mean of its divisors is an integer number (26030160).

Almost surely, 2^1161154104 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 1161154104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1665930240).

1161154104 is an abundant number, since it is smaller than the sum of its proper divisors (2170706376).

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

1161154104 is a wasteful number, since it uses less digits than its factorization.

1161154104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781 (or 2777 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 1161154104 is about 34075.7113498750. The cubic root of 1161154104 is about 1051.0659180100.

Adding to 1161154104 its reverse (4014511611), we get a palindrome (5175665715).

The spelling of 1161154104 in words is "one billion, one hundred sixty-one million, one hundred fifty-four thousand, one hundred four".