161606087 has 2 divisors, whose sum is σ = 161606088. Its totient is φ = 161606086.

The previous prime is 161606057. The next prime is 161606117. The reversal of 161606087 is 780606161.

It is a balanced prime because it is at equal distance from previous prime (161606057) and next prime (161606117).

It is a cyclic number.

It is not a de Polignac number, because 161606087 - 2⁶ = 161606023 is a prime.

It is a super-2 number, since 2×161606087² = 52233054710903138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161606057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80803043 + 80803044.

It is an arithmetic number, because the mean of its divisors is an integer number (80803044).

Almost surely, 2^161606087 is an apocalyptic number.

161606087 is a deficient number, since it is larger than the sum of its proper divisors (1).

161606087 is an equidigital number, since it uses as much as digits as its factorization.

161606087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 161606087 is about 12712.4382791029. The cubic root of 161606087 is about 544.6939751524.

The spelling of 161606087 in words is "one hundred sixty-one million, six hundred six thousand, eighty-seven".