681134054 has 4 divisors (see below), whose sum is σ = 1021701084. Its totient is φ = 340567026.

The previous prime is 681134033. The next prime is 681134063. The reversal of 681134054 is 450431186.

681134054 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 681134054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170283512 + ... + 170283515.

It is an arithmetic number, because the mean of its divisors is an integer number (255425271).

Almost surely, 2^681134054 is an apocalyptic number.

681134054 is a deficient number, since it is larger than the sum of its proper divisors (340567030).

681134054 is a wasteful number, since it uses less digits than its factorization.

681134054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340567029.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 681134054 is about 26098.5450552325. The cubic root of 681134054 is about 879.8545102107.

The spelling of 681134054 in words is "six hundred eighty-one million, one hundred thirty-four thousand, fifty-four".