160123730 has 16 divisors (see below), whose sum is σ = 310393944. Its totient is φ = 59122560.

The previous prime is 160123709. The next prime is 160123739. The reversal of 160123730 is 37321061.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 43072969 + 117050761 = 6563^2 + 10819^2 .

It is a super-2 number, since 2×160123730² = 51279217818225800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 160123696 and 160123705.

It is not an unprimeable number, because it can be changed into a prime (160123739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615731 + ... + 615990.

Almost surely, 2^160123730 is an apocalyptic number.

160123730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

160123730 is a deficient number, since it is larger than the sum of its proper divisors (150270214).

160123730 is a wasteful number, since it uses less digits than its factorization.

160123730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231741.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 160123730 is about 12654.0005531848. Note that the first 3 decimals coincide. The cubic root of 160123730 is about 543.0234268003.

Adding to 160123730 its reverse (37321061), we get a palindrome (197444791).

The spelling of 160123730 in words is "one hundred sixty million, one hundred twenty-three thousand, seven hundred thirty".