1139146394 has 16 divisors (see below), whose sum is σ = 1750969440. Its totient is φ = 555637680.

The previous prime is 1139146363. The next prime is 1139146399. The reversal of 1139146394 is 4936419311.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1139146399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21389 + ... + 52304.

It is an arithmetic number, because the mean of its divisors is an integer number (109435590).

Almost surely, 2^1139146394 is an apocalyptic number.

1139146394 is a deficient number, since it is larger than the sum of its proper divisors (611823046).

1139146394 is a wasteful number, since it uses less digits than its factorization.

1139146394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73885.

The product of its digits is 69984, while the sum is 41.

The square root of 1139146394 is about 33751.2428511899. The cubic root of 1139146394 is about 1044.3831265353.

The spelling of 1139146394 in words is "one billion, one hundred thirty-nine million, one hundred forty-six thousand, three hundred ninety-four".