681119252 has 24 divisors (see below), whose sum is σ = 1311835392. Its totient is φ = 306857600.

The previous prime is 681119251. The next prime is 681119267. The reversal of 681119252 is 252911186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681119251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63524 + ... + 73467.

It is an arithmetic number, because the mean of its divisors is an integer number (54659808).

Almost surely, 2^681119252 is an apocalyptic number.

It is an amenable number.

681119252 is a deficient number, since it is larger than the sum of its proper divisors (630716140).

681119252 is a wasteful number, since it uses less digits than its factorization.

681119252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137119 (or 137117 counting only the distinct ones).

The product of its digits is 8640, while the sum is 35.

The square root of 681119252 is about 26098.2614746653. The cubic root of 681119252 is about 879.8481366729.

The spelling of 681119252 in words is "six hundred eighty-one million, one hundred nineteen thousand, two hundred fifty-two".