1155231074 has 8 divisors (see below), whose sum is σ = 1808187840. Its totient is φ = 552501796.

The previous prime is 1155231071. The next prime is 1155231079. The reversal of 1155231074 is 4701325511.

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

It is not an unprimeable number, because it can be changed into a prime (1155231071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12556814 + ... + 12556905.

It is an arithmetic number, because the mean of its divisors is an integer number (226023480).

Almost surely, 2^1155231074 is an apocalyptic number.

1155231074 is a deficient number, since it is larger than the sum of its proper divisors (652956766).

1155231074 is a wasteful number, since it uses less digits than its factorization.

1155231074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25113744.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 1155231074 is about 33988.6903837144. The cubic root of 1155231074 is about 1049.2757133538.

Adding to 1155231074 its reverse (4701325511), we get a palindrome (5856556585).

The spelling of 1155231074 in words is "one billion, one hundred fifty-five million, two hundred thirty-one thousand, seventy-four".