161387484 has 12 divisors (see below), whose sum is σ = 376570824. Its totient is φ = 53795824.

The previous prime is 161387483. The next prime is 161387489. The reversal of 161387484 is 484783161.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161387483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6724467 + ... + 6724490.

It is an arithmetic number, because the mean of its divisors is an integer number (31380902).

Almost surely, 2^161387484 is an apocalyptic number.

It is an amenable number.

161387484 is an abundant number, since it is smaller than the sum of its proper divisors (215183340).

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

161387484 is a wasteful number, since it uses less digits than its factorization.

161387484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13448964 (or 13448962 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 161387484 is about 12703.8373730145. The cubic root of 161387484 is about 544.4482635609.

The spelling of 161387484 in words is "one hundred sixty-one million, three hundred eighty-seven thousand, four hundred eighty-four".