1361117087 has 16 divisors (see below), whose sum is σ = 1587485952. Its totient is φ = 1153269120.

The previous prime is 1361117081. The next prime is 1361117089. The reversal of 1361117087 is 7807111631.

It is not a de Polignac number, because 1361117087 - 2⁴ = 1361117071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361117081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16073 + ... + 54594.

It is an arithmetic number, because the mean of its divisors is an integer number (99217872).

Almost surely, 2^1361117087 is an apocalyptic number.

1361117087 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1361117087 is a deficient number, since it is larger than the sum of its proper divisors (226368865).

1361117087 is a wasteful number, since it uses less digits than its factorization.

1361117087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70798.

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 1361117087 is about 36893.3203574848. The cubic root of 1361117087 is about 1108.2349154034.

The spelling of 1361117087 in words is "one billion, three hundred sixty-one million, one hundred seventeen thousand, eighty-seven".