681467031 has 12 divisors (see below), whose sum is σ = 1124961552. Its totient is φ = 389409696.

The previous prime is 681467029. The next prime is 681467041. The reversal of 681467031 is 130764186.

It is not a de Polignac number, because 681467031 - 2¹ = 681467029 is a prime.

It is a super-2 number, since 2×681467031² = 928794628679909922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681467041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5408406 + ... + 5408531.

It is an arithmetic number, because the mean of its divisors is an integer number (93746796).

Almost surely, 2^681467031 is an apocalyptic number.

681467031 is a deficient number, since it is larger than the sum of its proper divisors (443494521).

681467031 is a wasteful number, since it uses less digits than its factorization.

681467031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10816950 (or 10816947 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 681467031 is about 26104.9235011329. The cubic root of 681467031 is about 879.9978611346.

The spelling of 681467031 in words is "six hundred eighty-one million, four hundred sixty-seven thousand, thirty-one".