161026427 has 8 divisors (see below), whose sum is σ = 168327936. Its totient is φ = 153749992.

The previous prime is 161026423. The next prime is 161026433. The reversal of 161026427 is 724620161.

161026427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 161026427 - 2² = 161026423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161026427.

It is not an unprimeable number, because it can be changed into a prime (161026423) 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, 7538 + ... + 19464.

It is an arithmetic number, because the mean of its divisors is an integer number (21040992).

Almost surely, 2^161026427 is an apocalyptic number.

161026427 is a deficient number, since it is larger than the sum of its proper divisors (7301509).

161026427 is a wasteful number, since it uses less digits than its factorization.

161026427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12537.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 161026427 is about 12689.6188674050. The cubic root of 161026427 is about 544.0419461510.

Adding to 161026427 its reverse (724620161), we get a palindrome (885646588).

The spelling of 161026427 in words is "one hundred sixty-one million, twenty-six thousand, four hundred twenty-seven".