161055130 has 32 divisors (see below), whose sum is σ = 294940800. Its totient is φ = 63312192.

The previous prime is 161055121. The next prime is 161055133. The reversal of 161055130 is 31550161.

It is not an unprimeable number, because it can be changed into a prime (161055133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150979 + ... + 152041.

It is an arithmetic number, because the mean of its divisors is an integer number (9216900).

Almost surely, 2^161055130 is an apocalyptic number.

161055130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161055130 is a deficient number, since it is larger than the sum of its proper divisors (133885670).

161055130 is a wasteful number, since it uses less digits than its factorization.

161055130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 161055130 is about 12690.7497808443. The cubic root of 161055130 is about 544.0742694339.

The spelling of 161055130 in words is "one hundred sixty-one million, fifty-five thousand, one hundred thirty".