320126725 has 12 divisors (see below), whose sum is σ = 417850240. Its totient is φ = 242622000.

The previous prime is 320126713. The next prime is 320126749. The reversal of 320126725 is 527621023.

It is not a de Polignac number, because 320126725 - 2⁵ = 320126693 is a prime.

It is a super-2 number, since 2×320126725² = 204962240118451250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320126693 and 320126702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336501 + ... + 337450.

Almost surely, 2^320126725 is an apocalyptic number.

It is an amenable number.

320126725 is a deficient number, since it is larger than the sum of its proper divisors (97723515).

320126725 is a wasteful number, since it uses less digits than its factorization.

320126725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673980 (or 673975 counting only the distinct ones).

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

The square root of 320126725 is about 17892.0855408194. The cubic root of 320126725 is about 684.0806570469.

Adding to 320126725 its reverse (527621023), we get a palindrome (847747748).

The spelling of 320126725 in words is "three hundred twenty million, one hundred twenty-six thousand, seven hundred twenty-five".