1631160887 has 8 divisors (see below), whose sum is σ = 1741196160. Its totient is φ = 1523544120.

The previous prime is 1631160847. The next prime is 1631160889. The reversal of 1631160887 is 7880611361.

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 1631160887 - 2²⁰ = 1630112311 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 (1631160889) 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, 603233 + ... + 605930.

It is an arithmetic number, because the mean of its divisors is an integer number (217649520).

Almost surely, 2^1631160887 is an apocalyptic number.

1631160887 is a deficient number, since it is larger than the sum of its proper divisors (110035273).

1631160887 is a wasteful number, since it uses less digits than its factorization.

1631160887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209253.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 1631160887 is about 40387.6328471972. The cubic root of 1631160887 is about 1177.1512452336.

The spelling of 1631160887 in words is "one billion, six hundred thirty-one million, one hundred sixty thousand, eight hundred eighty-seven".