161400088 has 16 divisors (see below), whose sum is σ = 302760000. Its totient is φ = 80664096.

The previous prime is 161400077. The next prime is 161400133. The reversal of 161400088 is 880004161.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 32473 + ... + 37111.

It is an arithmetic number, because the mean of its divisors is an integer number (18922500).

Almost surely, 2^161400088 is an apocalyptic number.

It is an amenable number.

161400088 is a deficient number, since it is larger than the sum of its proper divisors (141359912).

161400088 is a wasteful number, since it uses less digits than its factorization.

161400088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8994 (or 8990 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 161400088 is about 12704.3334339114. Note that the first 3 decimals coincide. The cubic root of 161400088 is about 544.4624365874.

The spelling of 161400088 in words is "one hundred sixty-one million, four hundred thousand, eighty-eight".