1232545139 has 8 divisors (see below), whose sum is σ = 1408869120. Its totient is φ = 1056282696.

The previous prime is 1232545121. The next prime is 1232545141. The reversal of 1232545139 is 9315452321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1232545139 - 2²⁸ = 964109683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1232545099 and 1232545108.

It is not an unprimeable number, because it can be changed into a prime (1232544139) 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, 41642 + ... + 64800.

It is an arithmetic number, because the mean of its divisors is an integer number (176108640).

Almost surely, 2^1232545139 is an apocalyptic number.

1232545139 is a deficient number, since it is larger than the sum of its proper divisors (176323981).

1232545139 is an equidigital number, since it uses as much as digits as its factorization.

1232545139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30769.

The product of its digits is 32400, while the sum is 35.

The square root of 1232545139 is about 35107.6222350646. The cubic root of 1232545139 is about 1072.1797759845.

The spelling of 1232545139 in words is "one billion, two hundred thirty-two million, five hundred forty-five thousand, one hundred thirty-nine".