161455427 has 8 divisors (see below), whose sum is σ = 185052000. Its totient is φ = 137991744.

The previous prime is 161455379. The next prime is 161455429. The reversal of 161455427 is 724554161.

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 161455427 - 2¹⁴ = 161439043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161455429) 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, 30602 + ... + 35487.

It is an arithmetic number, because the mean of its divisors is an integer number (23131500).

Almost surely, 2^161455427 is an apocalyptic number.

161455427 is a deficient number, since it is larger than the sum of its proper divisors (23596573).

161455427 is an equidigital number, since it uses as much as digits as its factorization.

161455427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66445.

The product of its digits is 33600, while the sum is 35.

The square root of 161455427 is about 12706.5112048902. The cubic root of 161455427 is about 544.5246558098.

The spelling of 161455427 in words is "one hundred sixty-one million, four hundred fifty-five thousand, four hundred twenty-seven".