161960469 has 16 divisors (see below), whose sum is σ = 237916224. Its totient is φ = 97184000.

The previous prime is 161960459. The next prime is 161960471. The reversal of 161960469 is 964069161.

It is a cyclic number.

It is not a de Polignac number, because 161960469 - 2⁷ = 161960341 is a prime.

It is a super-2 number, since 2×161960469² = 52462387037399922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161960469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161960459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20964 + ... + 27629.

It is an arithmetic number, because the mean of its divisors is an integer number (14869764).

Almost surely, 2^161960469 is an apocalyptic number.

It is an amenable number.

161960469 is a deficient number, since it is larger than the sum of its proper divisors (75955755).

161960469 is a wasteful number, since it uses less digits than its factorization.

161960469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48708.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 161960469 is about 12726.3690422681. The cubic root of 161960469 is about 545.0918331350.

The spelling of 161960469 in words is "one hundred sixty-one million, nine hundred sixty thousand, four hundred sixty-nine".