65397123 has 24 divisors (see below), whose sum is σ = 104473200. Its totient is φ = 39087360.

The previous prime is 65397121. The next prime is 65397131. The reversal of 65397123 is 32179356.

It is not a de Polignac number, because 65397123 - 2¹ = 65397121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65397121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2703 + ... + 11751.

It is an arithmetic number, because the mean of its divisors is an integer number (4353050).

Almost surely, 2^65397123 is an apocalyptic number.

65397123 is a deficient number, since it is larger than the sum of its proper divisors (39076077).

65397123 is a wasteful number, since it uses less digits than its factorization.

65397123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9139 (or 9136 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 65397123 is about 8086.8487682162. The cubic root of 65397123 is about 402.8897460626.

The spelling of 65397123 in words is "sixty-five million, three hundred ninety-seven thousand, one hundred twenty-three".