320965534 has 4 divisors (see below), whose sum is σ = 481448304. Its totient is φ = 160482766.

The previous prime is 320965523. The next prime is 320965543. The reversal of 320965534 is 435569023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 435569023 = 2903 ⋅150041.

It is a junction number, because it is equal to n+sod(n) for n = 320965493 and 320965502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80241382 + ... + 80241385.

It is an arithmetic number, because the mean of its divisors is an integer number (120362076).

Almost surely, 2^320965534 is an apocalyptic number.

320965534 is a deficient number, since it is larger than the sum of its proper divisors (160482770).

320965534 is a wasteful number, since it uses less digits than its factorization.

320965534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160482769.

The product of its (nonzero) digits is 97200, while the sum is 37.

The square root of 320965534 is about 17915.5109890843. The cubic root of 320965534 is about 684.6776212274.

The spelling of 320965534 in words is "three hundred twenty million, nine hundred sixty-five thousand, five hundred thirty-four".