68732045 has 4 divisors (see below), whose sum is σ = 82478460. Its totient is φ = 54985632.

The previous prime is 68732033. The next prime is 68732057. The reversal of 68732045 is 54023786.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (68732033) and next prime (68732057).

It can be written as a sum of positive squares in 2 ways, for example, as 17952169 + 50779876 = 4237^2 + 7126^2 .

It is a cyclic number.

It is not a de Polignac number, because 68732045 - 2²² = 64537741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68731996 and 68732014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6873200 + ... + 6873209.

It is an arithmetic number, because the mean of its divisors is an integer number (20619615).

Almost surely, 2^68732045 is an apocalyptic number.

It is an amenable number.

68732045 is a deficient number, since it is larger than the sum of its proper divisors (13746415).

68732045 is a wasteful number, since it uses less digits than its factorization.

68732045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13746414.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 68732045 is about 8290.4791779486. The cubic root of 68732045 is about 409.6249693749.

The spelling of 68732045 in words is "sixty-eight million, seven hundred thirty-two thousand, forty-five".