1155876394 has 4 divisors (see below), whose sum is σ = 1733814594. Its totient is φ = 577938196.

The previous prime is 1155876391. The next prime is 1155876437. The reversal of 1155876394 is 4936785511.

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

It can be written as a sum of positive squares in only one way, i.e., 1152942025 + 2934369 = 33955^2 + 1713^2 .

It is not an unprimeable number, because it can be changed into a prime (1155876391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 288969097 + ... + 288969100.

Almost surely, 2^1155876394 is an apocalyptic number.

1155876394 is a deficient number, since it is larger than the sum of its proper divisors (577938200).

1155876394 is an equidigital number, since it uses as much as digits as its factorization.

1155876394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577938199.

The product of its digits is 907200, while the sum is 49.

The square root of 1155876394 is about 33998.1822161127. The cubic root of 1155876394 is about 1049.4710545217.

The spelling of 1155876394 in words is "one billion, one hundred fifty-five million, eight hundred seventy-six thousand, three hundred ninety-four".