681514532 has 6 divisors (see below), whose sum is σ = 1192650438. Its totient is φ = 340757264.

The previous prime is 681514499. The next prime is 681514579. The reversal of 681514532 is 235415186.

It can be written as a sum of positive squares in only one way, i.e., 533794816 + 147719716 = 23104^2 + 12154^2 .

It is a junction number, because it is equal to n+sod(n) for n = 681514492 and 681514501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85189313 + ... + 85189320.

It is an arithmetic number, because the mean of its divisors is an integer number (198775073).

Almost surely, 2^681514532 is an apocalyptic number.

It is an amenable number.

681514532 is a deficient number, since it is larger than the sum of its proper divisors (511135906).

681514532 is a wasteful number, since it uses less digits than its factorization.

681514532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170378637 (or 170378635 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The square root of 681514532 is about 26105.8332944957. The cubic root of 681514532 is about 880.0183071260.

The spelling of 681514532 in words is "six hundred eighty-one million, five hundred fourteen thousand, five hundred thirty-two".