1361377387 has 8 divisors (see below), whose sum is σ = 1386791280. Its totient is φ = 1336041600.

The previous prime is 1361377361. The next prime is 1361377393. The reversal of 1361377387 is 7837731631.

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 1361377387 - 2¹⁵ = 1361344619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1361377397) 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, 16263 + ... + 54655.

It is an arithmetic number, because the mean of its divisors is an integer number (173348910).

Almost surely, 2^1361377387 is an apocalyptic number.

1361377387 is a deficient number, since it is larger than the sum of its proper divisors (25413893).

1361377387 is an equidigital number, since it uses as much as digits as its factorization.

1361377387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39053.

The product of its digits is 444528, while the sum is 46.

The square root of 1361377387 is about 36896.8479277024. The cubic root of 1361377387 is about 1108.3055571735.

The spelling of 1361377387 in words is "one billion, three hundred sixty-one million, three hundred seventy-seven thousand, three hundred eighty-seven".