159186730 has 8 divisors (see below), whose sum is σ = 286536132. Its totient is φ = 63674688.

The previous prime is 159186721. The next prime is 159186733. The reversal of 159186730 is 37681951.

It can be written as a sum of positive squares in 2 ways, for example, as 139641489 + 19545241 = 11817^2 + 4421^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-6 number, since 6×159186730⁶ (a number of 50 digits) contains 666666 as substring.

It is not an unprimeable number, because it can be changed into a prime (159186733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7959327 + ... + 7959346.

Almost surely, 2^159186730 is an apocalyptic number.

159186730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

159186730 is a deficient number, since it is larger than the sum of its proper divisors (127349402).

159186730 is a wasteful number, since it uses less digits than its factorization.

159186730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15918680.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 159186730 is about 12616.9223664093. The cubic root of 159186730 is about 541.9621461106.

The spelling of 159186730 in words is "one hundred fifty-nine million, one hundred eighty-six thousand, seven hundred thirty".