726101121 has 8 divisors (see below), whose sum is σ = 968708160. Its totient is φ = 483780752.

The previous prime is 726101027. The next prime is 726101147. The reversal of 726101121 is 121101627.

It is a happy number.

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 726101121 - 2²⁵ = 692546689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (726109121) 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, 65685 + ... + 75938.

It is an arithmetic number, because the mean of its divisors is an integer number (121088520).

Almost surely, 2^726101121 is an apocalyptic number.

It is an amenable number.

726101121 is a deficient number, since it is larger than the sum of its proper divisors (242607039).

726101121 is a wasteful number, since it uses less digits than its factorization.

726101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143335.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 726101121 is about 26946.2635814318. The cubic root of 726101121 is about 898.8054609098.

Adding to 726101121 its reverse (121101627), we get a palindrome (847202748).

The spelling of 726101121 in words is "seven hundred twenty-six million, one hundred one thousand, one hundred twenty-one".