65120743 has 2 divisors, whose sum is σ = 65120744. Its totient is φ = 65120742.

The previous prime is 65120707. The next prime is 65120753. The reversal of 65120743 is 34702156.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65120743 is a prime.

It is a super-2 number, since 2×65120743² = 8481422337744098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65120753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32560371 + 32560372.

It is an arithmetic number, because the mean of its divisors is an integer number (32560372).

Almost surely, 2^65120743 is an apocalyptic number.

65120743 is a deficient number, since it is larger than the sum of its proper divisors (1).

65120743 is an equidigital number, since it uses as much as digits as its factorization.

65120743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 65120743 is about 8069.7424370298. The cubic root of 65120743 is about 402.3213831393.

Adding to 65120743 its reverse (34702156), we get a palindrome (99822899).

The spelling of 65120743 in words is "sixty-five million, one hundred twenty thousand, seven hundred forty-three".