161548005 has 16 divisors (see below), whose sum is σ = 259326144. Its totient is φ = 85875840.

The previous prime is 161547961. The next prime is 161548039. The reversal of 161548005 is 500845161.

It is not a de Polignac number, because 161548005 - 2⁷ = 161547877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12936 + ... + 22145.

It is an arithmetic number, because the mean of its divisors is an integer number (16207884).

Almost surely, 2^161548005 is an apocalyptic number.

161548005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

161548005 is a deficient number, since it is larger than the sum of its proper divisors (97778139).

161548005 is a wasteful number, since it uses less digits than its factorization.

161548005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35396.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 161548005 is about 12710.1536182691. The cubic root of 161548005 is about 544.6287121272.

The spelling of 161548005 in words is "one hundred sixty-one million, five hundred forty-eight thousand, five".