1232894139 has 16 divisors (see below), whose sum is σ = 1774483200. Its totient is φ = 759082016.

The previous prime is 1232894107. The next prime is 1232894161. The reversal of 1232894139 is 9314982321.

It is a cyclic number.

It is not a de Polignac number, because 1232894139 - 2⁵ = 1232894107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1232894139.

It is not an unprimeable number, because it can be changed into a prime (1232894189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306069 + ... + 310070.

It is an arithmetic number, because the mean of its divisors is an integer number (110905200).

Almost surely, 2^1232894139 is an apocalyptic number.

1232894139 is a deficient number, since it is larger than the sum of its proper divisors (541589061).

1232894139 is a wasteful number, since it uses less digits than its factorization.

1232894139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616194.

The product of its digits is 93312, while the sum is 42.

The square root of 1232894139 is about 35112.5923138694. The cubic root of 1232894139 is about 1072.2809637403.

The spelling of 1232894139 in words is "one billion, two hundred thirty-two million, eight hundred ninety-four thousand, one hundred thirty-nine".