161359427 has 8 divisors (see below), whose sum is σ = 171315936. Its totient is φ = 151454592.

The previous prime is 161359423. The next prime is 161359439. The reversal of 161359427 is 724953161.

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

It is a cyclic number.

It is not a de Polignac number, because 161359427 - 2² = 161359423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161359423) 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, 6383 + ... + 19064.

It is an arithmetic number, because the mean of its divisors is an integer number (21414492).

Almost surely, 2^161359427 is an apocalyptic number.

161359427 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

161359427 is a deficient number, since it is larger than the sum of its proper divisors (9956509).

161359427 is a wasteful number, since it uses less digits than its factorization.

161359427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25837.

The product of its digits is 45360, while the sum is 38.

The square root of 161359427 is about 12702.7330523789. The cubic root of 161359427 is about 544.4167111963.

The spelling of 161359427 in words is "one hundred sixty-one million, three hundred fifty-nine thousand, four hundred twenty-seven".