161498328 has 32 divisors (see below), whose sum is σ = 424996800. Its totient is φ = 50999328.

The previous prime is 161498327. The next prime is 161498333. The reversal of 161498328 is 823894161.

It is a self number, because there is not a number n which added to its sum of digits gives 161498328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161498327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176626 + ... + 177537.

It is an arithmetic number, because the mean of its divisors is an integer number (13281150).

Almost surely, 2^161498328 is an apocalyptic number.

It is an amenable number.

161498328 is an abundant number, since it is smaller than the sum of its proper divisors (263498472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161498328 is a wasteful number, since it uses less digits than its factorization.

161498328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354191 (or 354187 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 161498328 is about 12708.1992430084. The cubic root of 161498328 is about 544.5728808502.

The spelling of 161498328 in words is "one hundred sixty-one million, four hundred ninety-eight thousand, three hundred twenty-eight".