68225461 has 4 divisors (see below), whose sum is σ = 68683500. Its totient is φ = 67767424.

The previous prime is 68225453. The next prime is 68225467. The reversal of 68225461 is 16452286.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16452286 = 2 ⋅8226143.

It can be written as a sum of positive squares in 2 ways, for example, as 4704561 + 63520900 = 2169^2 + 7970^2 .

It is a cyclic number.

It is not a de Polignac number, because 68225461 - 2³ = 68225453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68225467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228796 + ... + 229093.

It is an arithmetic number, because the mean of its divisors is an integer number (17170875).

Almost surely, 2^68225461 is an apocalyptic number.

It is an amenable number.

68225461 is a deficient number, since it is larger than the sum of its proper divisors (458039).

68225461 is a wasteful number, since it uses less digits than its factorization.

68225461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458038.

The product of its digits is 23040, while the sum is 34.

The square root of 68225461 is about 8259.8705195663. The cubic root of 68225461 is about 408.6161174685.

It can be divided in two parts, 68225 and 461, that added together give a palindrome (68686).

The spelling of 68225461 in words is "sixty-eight million, two hundred twenty-five thousand, four hundred sixty-one".