161730070 has 16 divisors (see below), whose sum is σ = 291328128. Its totient is φ = 64644480.

The previous prime is 161730059. The next prime is 161730073. The reversal of 161730070 is 70037161.

161730070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161730073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10510 + ... + 20830.

It is an arithmetic number, because the mean of its divisors is an integer number (18208008).

Almost surely, 2^161730070 is an apocalyptic number.

161730070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161730070 is a deficient number, since it is larger than the sum of its proper divisors (129598058).

161730070 is a wasteful number, since it uses less digits than its factorization.

161730070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11895.

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 161730070 is about 12717.3137886898. The cubic root of 161730070 is about 544.8332346145.

The spelling of 161730070 in words is "one hundred sixty-one million, seven hundred thirty thousand, seventy".