161455324 has 12 divisors (see below), whose sum is σ = 299167344. Its totient is φ = 75978944.

The previous prime is 161455321. The next prime is 161455361. The reversal of 161455324 is 423554161.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161455321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1187104 + ... + 1187239.

It is an arithmetic number, because the mean of its divisors is an integer number (24930612).

Almost surely, 2^161455324 is an apocalyptic number.

It is an amenable number.

161455324 is a deficient number, since it is larger than the sum of its proper divisors (137712020).

161455324 is a wasteful number, since it uses less digits than its factorization.

161455324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2374364 (or 2374362 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 161455324 is about 12706.5071518494. The cubic root of 161455324 is about 544.5245400172.

The spelling of 161455324 in words is "one hundred sixty-one million, four hundred fifty-five thousand, three hundred twenty-four".