161498285 has 8 divisors (see below), whose sum is σ = 208705560. Its totient is φ = 119260224.

The previous prime is 161498279. The next prime is 161498291. The reversal of 161498285 is 582894161.

It is an interprime number because it is at equal distance from previous prime (161498279) and next prime (161498291).

It can be written as a sum of positive squares in 4 ways, for example, as 19483396 + 142014889 = 4414^2 + 11917^2 .

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 161498285 - 2¹² = 161494189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1242230 + ... + 1242359.

It is an arithmetic number, because the mean of its divisors is an integer number (26088195).

Almost surely, 2^161498285 is an apocalyptic number.

It is an amenable number.

161498285 is a deficient number, since it is larger than the sum of its proper divisors (47207275).

161498285 is a wasteful number, since it uses less digits than its factorization.

161498285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2484607.

The product of its digits is 138240, while the sum is 44.

The square root of 161498285 is about 12708.1975511872. The cubic root of 161498285 is about 544.5728325182.

It can be divided in two parts, 1614 and 98285, that added together give a palindrome (99899).

The spelling of 161498285 in words is "one hundred sixty-one million, four hundred ninety-eight thousand, two hundred eighty-five".