161387548 has 24 divisors (see below), whose sum is σ = 324650592. Its totient is φ = 68764224.

The previous prime is 161387509. The next prime is 161387549. The reversal of 161387548 is 845783161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161387549) 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 7 ways as a sum of consecutive naturals, for example, 11815 + ... + 21502.

It is an arithmetic number, because the mean of its divisors is an integer number (13527108).

Almost surely, 2^161387548 is an apocalyptic number.

It is an amenable number.

161387548 is an abundant number, since it is smaller than the sum of its proper divisors (163263044).

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

161387548 is a wasteful number, since it uses less digits than its factorization.

161387548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33501 (or 33499 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 161387548 is about 12703.8398919382. The cubic root of 161387548 is about 544.4483355299.

The spelling of 161387548 in words is "one hundred sixty-one million, three hundred eighty-seven thousand, five hundred forty-eight".