1361075539 has 8 divisors (see below), whose sum is σ = 1441473408. Its totient is φ = 1280714880.

The previous prime is 1361075501. The next prime is 1361075557. The reversal of 1361075539 is 9355701631.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1361075539 - 2⁷ = 1361075411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1361075039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109374 + ... + 121180.

It is an arithmetic number, because the mean of its divisors is an integer number (180184176).

Almost surely, 2^1361075539 is an apocalyptic number.

1361075539 is a deficient number, since it is larger than the sum of its proper divisors (80397869).

1361075539 is a wasteful number, since it uses less digits than its factorization.

1361075539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18605.

The product of its (nonzero) digits is 85050, while the sum is 40.

The square root of 1361075539 is about 36892.7572702285. The cubic root of 1361075539 is about 1108.2236390253.

The spelling of 1361075539 in words is "one billion, three hundred sixty-one million, seventy-five thousand, five hundred thirty-nine".