320745127 has 16 divisors (see below), whose sum is σ = 343664640. Its totient is φ = 298821600.

The previous prime is 320745121. The next prime is 320745149. The reversal of 320745127 is 721547023.

It is a cyclic number.

It is not a de Polignac number, because 320745127 - 2¹¹ = 320743079 is a prime.

It is a super-2 number, since 2×320745127² = 205754872988492258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320745121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92949 + ... + 96337.

It is an arithmetic number, because the mean of its divisors is an integer number (21479040).

Almost surely, 2^320745127 is an apocalyptic number.

320745127 is a deficient number, since it is larger than the sum of its proper divisors (22919513).

320745127 is a wasteful number, since it uses less digits than its factorization.

320745127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3534.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 320745127 is about 17909.3586428995. The cubic root of 320745127 is about 684.5208626553.

The spelling of 320745127 in words is "three hundred twenty million, seven hundred forty-five thousand, one hundred twenty-seven".