731106061 has 4 divisors (see below), whose sum is σ = 835549792. Its totient is φ = 626662332.

The previous prime is 731106049. The next prime is 731106091. The reversal of 731106061 is 160601137.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 160601137 = 113 ⋅1421249.

It is a cyclic number.

It is not a de Polignac number, because 731106061 - 2⁷ = 731105933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731106031) 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, 52221855 + ... + 52221868.

It is an arithmetic number, because the mean of its divisors is an integer number (208887448).

Almost surely, 2^731106061 is an apocalyptic number.

It is an amenable number.

731106061 is a deficient number, since it is larger than the sum of its proper divisors (104443731).

731106061 is a wasteful number, since it uses less digits than its factorization.

731106061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104443730.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 731106061 is about 27038.9730019467. The cubic root of 731106061 is about 900.8658584903.

Adding to 731106061 its reverse (160601137), we get a palindrome (891707198).

The spelling of 731106061 in words is "seven hundred thirty-one million, one hundred six thousand, sixty-one".