681280954 has 16 divisors (see below), whose sum is σ = 1029899520. Its totient is φ = 337991760.

The previous prime is 681280937. The next prime is 681280973. The reversal of 681280954 is 459082186.

It is a happy number.

681280954 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 681280954.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140047 + ... + 144829.

It is an arithmetic number, because the mean of its divisors is an integer number (64368720).

Almost surely, 2^681280954 is an apocalyptic number.

681280954 is a deficient number, since it is larger than the sum of its proper divisors (348618566).

681280954 is a wasteful number, since it uses less digits than its factorization.

681280954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5325.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 681280954 is about 26101.3592366375. The cubic root of 681280954 is about 879.9177583266.

The spelling of 681280954 in words is "six hundred eighty-one million, two hundred eighty thousand, nine hundred fifty-four".