1161459238 has 4 divisors (see below), whose sum is σ = 1742188860. Its totient is φ = 580729618.

The previous prime is 1161459217. The next prime is 1161459239. The reversal of 1161459238 is 8329541611.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1161459238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161459239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290364808 + ... + 290364811.

It is an arithmetic number, because the mean of its divisors is an integer number (435547215).

Almost surely, 2^1161459238 is an apocalyptic number.

1161459238 is a deficient number, since it is larger than the sum of its proper divisors (580729622).

1161459238 is an equidigital number, since it uses as much as digits as its factorization.

1161459238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580729621.

The product of its digits is 51840, while the sum is 40.

The square root of 1161459238 is about 34080.1883504185. The cubic root of 1161459238 is about 1051.1579781014.

The spelling of 1161459238 in words is "one billion, one hundred sixty-one million, four hundred fifty-nine thousand, two hundred thirty-eight".