425316981 has 8 divisors (see below), whose sum is σ = 568305504. Its totient is φ = 282936560.

The previous prime is 425316953. The next prime is 425317007. The reversal of 425316981 is 189613524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 425316981 - 2¹¹ = 425314933 is a prime.

It is a super-2 number, since 2×425316981² = 361789068653908722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425316901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150390 + ... + 153191.

It is an arithmetic number, because the mean of its divisors is an integer number (71038188).

Almost surely, 2^425316981 is an apocalyptic number.

It is an amenable number.

425316981 is a deficient number, since it is larger than the sum of its proper divisors (142988523).

425316981 is a wasteful number, since it uses less digits than its factorization.

425316981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304051.

The product of its digits is 51840, while the sum is 39.

The square root of 425316981 is about 20623.2146136338. The cubic root of 425316981 is about 752.0341703247.

The spelling of 425316981 in words is "four hundred twenty-five million, three hundred sixteen thousand, nine hundred eighty-one".