161487304 has 16 divisors (see below), whose sum is σ = 330315120. Its totient is φ = 73403280.

The previous prime is 161487257. The next prime is 161487311. The reversal of 161487304 is 403784161.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 161487304.

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, 917454 + ... + 917629.

It is an arithmetic number, because the mean of its divisors is an integer number (20644695).

Almost surely, 2^161487304 is an apocalyptic number.

It is an amenable number.

161487304 is an abundant number, since it is smaller than the sum of its proper divisors (168827816).

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

161487304 is a wasteful number, since it uses less digits than its factorization.

161487304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835100 (or 1835096 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 161487304 is about 12707.7654998823. The cubic root of 161487304 is about 544.5604895805.

The spelling of 161487304 in words is "one hundred sixty-one million, four hundred eighty-seven thousand, three hundred four".