1617140087 has 8 divisors (see below), whose sum is σ = 1665713280. Its totient is φ = 1569065400.

The previous prime is 1617140071. The next prime is 1617140099. The reversal of 1617140087 is 7800417161.

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 1617140087 - 2⁴ = 1617140071 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 (1617140587) 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, 118037 + ... + 131022.

It is an arithmetic number, because the mean of its divisors is an integer number (208214160).

Almost surely, 2^1617140087 is an apocalyptic number.

1617140087 is a deficient number, since it is larger than the sum of its proper divisors (48573193).

1617140087 is a wasteful number, since it uses less digits than its factorization.

1617140087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249253.

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 1617140087 is about 40213.6803463697. The cubic root of 1617140087 is about 1173.7687629785.

The spelling of 1617140087 in words is "one billion, six hundred seventeen million, one hundred forty thousand, eighty-seven".