1361008739 has 8 divisors (see below), whose sum is σ = 1422692640. Its totient is φ = 1299534016.

The previous prime is 1361008711. The next prime is 1361008799. The reversal of 1361008739 is 9378001631.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1361008739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1361008709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38912 + ... + 65085.

It is an arithmetic number, because the mean of its divisors is an integer number (177836580).

Almost surely, 2^1361008739 is an apocalyptic number.

1361008739 is a deficient number, since it is larger than the sum of its proper divisors (61683901).

1361008739 is a wasteful number, since it uses less digits than its factorization.

1361008739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104589.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 1361008739 is about 36891.8519323712. The cubic root of 1361008739 is about 1108.2055086208.

The spelling of 1361008739 in words is "one billion, three hundred sixty-one million, eight thousand, seven hundred thirty-nine".