1439040133 has 2 divisors, whose sum is σ = 1439040134. Its totient is φ = 1439040132.

The previous prime is 1439040131. The next prime is 1439040209. The reversal of 1439040133 is 3310409341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 999634689 + 439405444 = 31617^2 + 20962^2 .

It is a cyclic number.

It is not a de Polignac number, because 1439040133 - 2¹ = 1439040131 is a prime.

Together with 1439040131, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1439040131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719520066 + 719520067.

It is an arithmetic number, because the mean of its divisors is an integer number (719520067).

Almost surely, 2^1439040133 is an apocalyptic number.

It is an amenable number.

1439040133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1439040133 is an equidigital number, since it uses as much as digits as its factorization.

1439040133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 1439040133 is about 37934.6824555050. The cubic root of 1439040133 is about 1128.9922707120.

Adding to 1439040133 its reverse (3310409341), we get a palindrome (4749449474).

It can be divided in two parts, 143904013 and 3, that added together give a square (143904016 = 11996²).

The spelling of 1439040133 in words is "one billion, four hundred thirty-nine million, forty thousand, one hundred thirty-three".