126356161 has 8 divisors (see below), whose sum is σ = 131241600. Its totient is φ = 121506000.

The previous prime is 126356159. The next prime is 126356173. The reversal of 126356161 is 161653621.

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 126356161 - 2¹ = 126356159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126356101) 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, 1401 + ... + 15958.

It is an arithmetic number, because the mean of its divisors is an integer number (16405200).

Almost surely, 2^126356161 is an apocalyptic number.

It is an amenable number.

126356161 is a deficient number, since it is larger than the sum of its proper divisors (4885439).

126356161 is a wasteful number, since it uses less digits than its factorization.

126356161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17639.

The product of its digits is 6480, while the sum is 31.

The square root of 126356161 is about 11240.8256369361. The cubic root of 126356161 is about 501.8017145180.

The spelling of 126356161 in words is "one hundred twenty-six million, three hundred fifty-six thousand, one hundred sixty-one".