1161941504 has 80 divisors (see below), whose sum is σ = 2523290880. Its totient is φ = 532500480.

The previous prime is 1161941503. The next prime is 1161941519. The reversal of 1161941504 is 4051491611.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (1161941503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299642 + ... + 303494.

It is an arithmetic number, because the mean of its divisors is an integer number (31541136).

Almost surely, 2^1161941504 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 1161941504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1261645440).

1161941504 is an abundant number, since it is smaller than the sum of its proper divisors (1361349376).

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

1161941504 is an equidigital number, since it uses as much as digits as its factorization.

1161941504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3921 (or 3905 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 1161941504 is about 34087.2630758176. The cubic root of 1161941504 is about 1051.3034467179.

The spelling of 1161941504 in words is "one billion, one hundred sixty-one million, nine hundred forty-one thousand, five hundred four".