731424101 has 4 divisors (see below), whose sum is σ = 732468204. Its totient is φ = 730380000.

The previous prime is 731424097. The next prime is 731424131. The reversal of 731424101 is 101424137.

It is a happy number.

731424101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 538936225 + 192487876 = 23215^2 + 13874^2 .

It is a cyclic number.

It is not a de Polignac number, because 731424101 - 2² = 731424097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731424131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521000 + ... + 522401.

It is an arithmetic number, because the mean of its divisors is an integer number (183117051).

Almost surely, 2^731424101 is an apocalyptic number.

It is an amenable number.

731424101 is a deficient number, since it is larger than the sum of its proper divisors (1044103).

731424101 is a wasteful number, since it uses less digits than its factorization.

731424101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044102.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 731424101 is about 27044.8535030235. The cubic root of 731424101 is about 900.9964687431.

Adding to 731424101 its reverse (101424137), we get a palindrome (832848238).

The spelling of 731424101 in words is "seven hundred thirty-one million, four hundred twenty-four thousand, one hundred one".