1155055494 has 32 divisors (see below), whose sum is σ = 2358972000. Its totient is φ = 376952832.

The previous prime is 1155055459. The next prime is 1155055511. The reversal of 1155055494 is 4945505511.

1155055494 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50382 + ... + 69630.

It is an arithmetic number, because the mean of its divisors is an integer number (73717875).

Almost surely, 2^1155055494 is an apocalyptic number.

1155055494 is an abundant number, since it is smaller than the sum of its proper divisors (1203916506).

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

1155055494 is a wasteful number, since it uses less digits than its factorization.

1155055494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19464.

The product of its (nonzero) digits is 90000, while the sum is 39.

The square root of 1155055494 is about 33986.1073675701. The cubic root of 1155055494 is about 1049.2225519364. Note that the first 3 decimals are identical.

The spelling of 1155055494 in words is "one billion, one hundred fifty-five million, fifty-five thousand, four hundred ninety-four".