161055235 has 24 divisors (see below), whose sum is σ = 213257520. Its totient is φ = 116677440.

The previous prime is 161055233. The next prime is 161055259. The reversal of 161055235 is 532550161.

It is not a de Polignac number, because 161055235 - 2¹ = 161055233 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161055233) 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, 307684 + ... + 308206.

It is an arithmetic number, because the mean of its divisors is an integer number (8885730).

Almost surely, 2^161055235 is an apocalyptic number.

161055235 is a deficient number, since it is larger than the sum of its proper divisors (52202285).

161055235 is a wasteful number, since it uses less digits than its factorization.

161055235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059 (or 1048 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 161055235 is about 12690.7539177151. The cubic root of 161055235 is about 544.0743876704.

The spelling of 161055235 in words is "one hundred sixty-one million, fifty-five thousand, two hundred thirty-five".