161146055 has 24 divisors (see below), whose sum is σ = 228327408. Its totient is φ = 108839808.

The previous prime is 161146039. The next prime is 161146057. The reversal of 161146055 is 550641161.

It is not a de Polignac number, because 161146055 - 2⁴ = 161146039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161146057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11507 + ... + 21323.

It is an arithmetic number, because the mean of its divisors is an integer number (9513642).

Almost surely, 2^161146055 is an apocalyptic number.

161146055 is a deficient number, since it is larger than the sum of its proper divisors (67181353).

161146055 is an equidigital number, since it uses as much as digits as its factorization.

161146055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9903 (or 9896 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 161146055 is about 12694.3316090293. The cubic root of 161146055 is about 544.1766373752.

The spelling of 161146055 in words is "one hundred sixty-one million, one hundred forty-six thousand, fifty-five".