68459045 has 4 divisors (see below), whose sum is σ = 82150860. Its totient is φ = 54767232.

The previous prime is 68459009. The next prime is 68459081. The reversal of 68459045 is 54095486.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54095486 = 2 ⋅27047743.

It is an interprime number because it is at equal distance from previous prime (68459009) and next prime (68459081).

It can be written as a sum of positive squares in 2 ways, for example, as 17322244 + 51136801 = 4162^2 + 7151^2 .

It is a cyclic number.

It is not a de Polignac number, because 68459045 - 2²² = 64264741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68458993 and 68459011.

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, 6845900 + ... + 6845909.

It is an arithmetic number, because the mean of its divisors is an integer number (20537715).

Almost surely, 2^68459045 is an apocalyptic number.

It is an amenable number.

68459045 is a deficient number, since it is larger than the sum of its proper divisors (13691815).

68459045 is a wasteful number, since it uses less digits than its factorization.

68459045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13691814.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 68459045 is about 8273.9981266616. The cubic root of 68459045 is about 409.0819135994.

The spelling of 68459045 in words is "sixty-eight million, four hundred fifty-nine thousand, forty-five".