67331045 has 4 divisors (see below), whose sum is σ = 80797260. Its totient is φ = 53864832.

The previous prime is 67331023. The next prime is 67331057. The reversal of 67331045 is 54013376.

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

It can be written as a sum of positive squares in 2 ways, for example, as 39967684 + 27363361 = 6322^2 + 5231^2 .

It is a cyclic number.

It is not a de Polignac number, because 67331045 - 2⁶ = 67330981 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 67330999 and 67331017.

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, 6733100 + ... + 6733109.

It is an arithmetic number, because the mean of its divisors is an integer number (20199315).

Almost surely, 2^67331045 is an apocalyptic number.

It is an amenable number.

67331045 is a deficient number, since it is larger than the sum of its proper divisors (13466215).

67331045 is a wasteful number, since it uses less digits than its factorization.

67331045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13466214.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 67331045 is about 8205.5496464283. The cubic root of 67331045 is about 406.8226442638.

The spelling of 67331045 in words is "sixty-seven million, three hundred thirty-one thousand, forty-five".