161087386 has 8 divisors (see below), whose sum is σ = 241862004. Its totient is φ = 80466720.

The previous prime is 161087383. The next prime is 161087387. The reversal of 161087386 is 683780161.

It can be written as a sum of positive squares in 2 ways, for example, as 153140625 + 7946761 = 12375^2 + 2819^2 .

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

It is not an unprimeable number, because it can be changed into a prime (161087383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35835 + ... + 40078.

Almost surely, 2^161087386 is an apocalyptic number.

161087386 is a deficient number, since it is larger than the sum of its proper divisors (80774618).

161087386 is a wasteful number, since it uses less digits than its factorization.

161087386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76976.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 161087386 is about 12692.0205641182. The cubic root of 161087386 is about 544.1105892708.

The spelling of 161087386 in words is "one hundred sixty-one million, eighty-seven thousand, three hundred eighty-six".