651731741 has 2 divisors, whose sum is σ = 651731742. Its totient is φ = 651731740.

The previous prime is 651731723. The next prime is 651731783. The reversal of 651731741 is 147137156.

651731741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 651525625 + 206116 = 25525^2 + 454^2 .

It is a cyclic number.

It is not a de Polignac number, because 651731741 - 2²² = 647537437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (651751741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325865870 + 325865871.

It is an arithmetic number, because the mean of its divisors is an integer number (325865871).

Almost surely, 2^651731741 is an apocalyptic number.

It is an amenable number.

651731741 is a deficient number, since it is larger than the sum of its proper divisors (1).

651731741 is an equidigital number, since it uses as much as digits as its factorization.

651731741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 35.

The square root of 651731741 is about 25529.0372125546. The cubic root of 651731741 is about 867.0077061327.

Adding to 651731741 its reverse (147137156), we get a palindrome (798868897).

The spelling of 651731741 in words is "six hundred fifty-one million, seven hundred thirty-one thousand, seven hundred forty-one".