1409199539 has 4 divisors (see below), whose sum is σ = 1537308600. Its totient is φ = 1281090480.

The previous prime is 1409199487. The next prime is 1409199577. The reversal of 1409199539 is 9359919041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1409199539 - 2⁸ = 1409199283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1409199739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64054514 + ... + 64054535.

It is an arithmetic number, because the mean of its divisors is an integer number (384327150).

Almost surely, 2^1409199539 is an apocalyptic number.

1409199539 is a deficient number, since it is larger than the sum of its proper divisors (128109061).

1409199539 is a wasteful number, since it uses less digits than its factorization.

1409199539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128109060.

The product of its (nonzero) digits is 393660, while the sum is 50.

The square root of 1409199539 is about 37539.3065865634. The cubic root of 1409199539 is about 1121.1339331524.

The spelling of 1409199539 in words is "one billion, four hundred nine million, one hundred ninety-nine thousand, five hundred thirty-nine".