65149723 has 2 divisors, whose sum is σ = 65149724. Its totient is φ = 65149722.

The previous prime is 65149703. The next prime is 65149739. The reversal of 65149723 is 32794156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65149723 - 2⁹ = 65149211 is a prime.

It is not a weakly prime, because it can be changed into another prime (65149703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32574861 + 32574862.

It is an arithmetic number, because the mean of its divisors is an integer number (32574862).

Almost surely, 2^65149723 is an apocalyptic number.

65149723 is a deficient number, since it is larger than the sum of its proper divisors (1).

65149723 is an equidigital number, since it uses as much as digits as its factorization.

65149723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 37.

The square root of 65149723 is about 8071.5378336473. The cubic root of 65149723 is about 402.3810545744.

The spelling of 65149723 in words is "sixty-five million, one hundred forty-nine thousand, seven hundred twenty-three".