681203227 has 4 divisors (see below), whose sum is σ = 684127080. Its totient is φ = 678279376.

The previous prime is 681203183. The next prime is 681203249. The reversal of 681203227 is 722302186.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722302186 = 2 ⋅361151093.

It is a cyclic number.

It is not a de Polignac number, because 681203227 - 2¹⁹ = 680678939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (681203527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1461577 + ... + 1462042.

It is an arithmetic number, because the mean of its divisors is an integer number (171031770).

Almost surely, 2^681203227 is an apocalyptic number.

681203227 is a deficient number, since it is larger than the sum of its proper divisors (2923853).

681203227 is a wasteful number, since it uses less digits than its factorization.

681203227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923852.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 681203227 is about 26099.8702487196. The cubic root of 681203227 is about 879.8842939297.

The spelling of 681203227 in words is "six hundred eighty-one million, two hundred three thousand, two hundred twenty-seven".