1161423038 has 8 divisors (see below), whose sum is σ = 1759383720. Its totient is φ = 574961800.

The previous prime is 1161423037. The next prime is 1161423071. The reversal of 1161423038 is 8303241611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1161423038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161423037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2874608 + ... + 2875011.

It is an arithmetic number, because the mean of its divisors is an integer number (219922965).

Almost surely, 2^1161423038 is an apocalyptic number.

1161423038 is a deficient number, since it is larger than the sum of its proper divisors (597960682).

1161423038 is a wasteful number, since it uses less digits than its factorization.

1161423038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5749722.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1161423038 is about 34079.6572459290. The cubic root of 1161423038 is about 1051.1470572664.

Adding to 1161423038 its reverse (8303241611), we get a palindrome (9464664649).

The spelling of 1161423038 in words is "one billion, one hundred sixty-one million, four hundred twenty-three thousand, thirty-eight".