731201051 has 4 divisors (see below), whose sum is σ = 835658352. Its totient is φ = 626743752.

The previous prime is 731201039. The next prime is 731201057. The reversal of 731201051 is 150102137.

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

It is a cyclic number.

It is not a de Polignac number, because 731201051 - 2¹⁴ = 731184667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (731201057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52228640 + ... + 52228653.

It is an arithmetic number, because the mean of its divisors is an integer number (208914588).

Almost surely, 2^731201051 is an apocalyptic number.

731201051 is a deficient number, since it is larger than the sum of its proper divisors (104457301).

731201051 is a wasteful number, since it uses less digits than its factorization.

731201051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104457300.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 731201051 is about 27040.7294835032. The cubic root of 731201051 is about 900.9048722288.

Adding to 731201051 its reverse (150102137), we get a palindrome (881303188).

The spelling of 731201051 in words is "seven hundred thirty-one million, two hundred one thousand, fifty-one".