1439453156 has 6 divisors (see below), whose sum is σ = 2519043030. Its totient is φ = 719726576.

The previous prime is 1439453153. The next prime is 1439453177. The reversal of 1439453156 is 6513549341.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1301766400 + 137686756 = 36080^2 + 11734^2 .

It is not an unprimeable number, because it can be changed into a prime (1439453153) 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 as a sum of consecutive naturals, namely, 179931641 + ... + 179931648.

It is an arithmetic number, because the mean of its divisors is an integer number (419840505).

Almost surely, 2^1439453156 is an apocalyptic number.

It is an amenable number.

1439453156 is a deficient number, since it is larger than the sum of its proper divisors (1079589874).

1439453156 is a wasteful number, since it uses less digits than its factorization.

1439453156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359863293 (or 359863291 counting only the distinct ones).

The product of its digits is 194400, while the sum is 41.

The square root of 1439453156 is about 37940.1259354789. The cubic root of 1439453156 is about 1129.1002721405.

The spelling of 1439453156 in words is "one billion, four hundred thirty-nine million, four hundred fifty-three thousand, one hundred fifty-six".