1138597194 has 16 divisors (see below), whose sum is σ = 2602507968. Its totient is φ = 325313472.

The previous prime is 1138597193. The next prime is 1138597277. The reversal of 1138597194 is 4917958311.

It is not an unprimeable number, because it can be changed into a prime (1138597193) 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 7 ways as a sum of consecutive naturals, for example, 13554687 + ... + 13554770.

It is an arithmetic number, because the mean of its divisors is an integer number (162656748).

Almost surely, 2^1138597194 is an apocalyptic number.

1138597194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1138597194 is an abundant number, since it is smaller than the sum of its proper divisors (1463910774).

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

1138597194 is a wasteful number, since it uses less digits than its factorization.

1138597194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27109469.

The product of its digits is 272160, while the sum is 48.

The square root of 1138597194 is about 33743.1058736448. The cubic root of 1138597194 is about 1044.2152618320.

The spelling of 1138597194 in words is "one billion, one hundred thirty-eight million, five hundred ninety-seven thousand, one hundred ninety-four".