161297148 has 12 divisors (see below), whose sum is σ = 376360040. Its totient is φ = 53765712.

The previous prime is 161297131. The next prime is 161297153. The reversal of 161297148 is 841792161.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6720703 + ... + 6720726.

Almost surely, 2^161297148 is an apocalyptic number.

It is an amenable number.

161297148 is an abundant number, since it is smaller than the sum of its proper divisors (215062892).

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

161297148 is a wasteful number, since it uses less digits than its factorization.

161297148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13441436 (or 13441434 counting only the distinct ones).

The product of its digits is 24192, while the sum is 39.

The square root of 161297148 is about 12700.2814142050. The cubic root of 161297148 is about 544.3466603538.

The spelling of 161297148 in words is "one hundred sixty-one million, two hundred ninety-seven thousand, one hundred forty-eight".