161542767 has 24 divisors (see below), whose sum is σ = 226624000. Its totient is φ = 102249360.

The previous prime is 161542751. The next prime is 161542793. The reversal of 161542767 is 767245161.

It is not a de Polignac number, because 161542767 - 2⁴ = 161542751 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 (161542067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 323484 + ... + 323982.

Almost surely, 2^161542767 is an apocalyptic number.

161542767 is a deficient number, since it is larger than the sum of its proper divisors (65081233).

161542767 is an equidigital number, since it uses as much as digits as its factorization.

161542767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651 (or 592 counting only the distinct ones).

The product of its digits is 70560, while the sum is 39.

The square root of 161542767 is about 12709.9475608674. The cubic root of 161542767 is about 544.6228257530.

The spelling of 161542767 in words is "one hundred sixty-one million, five hundred forty-two thousand, seven hundred sixty-seven".