68430145 has 16 divisors (see below), whose sum is σ = 94030848. Its totient is φ = 46831680.

The previous prime is 68430139. The next prime is 68430149. The reversal of 68430145 is 54103486.

It is a happy number.

It is not a de Polignac number, because 68430145 - 2³ = 68430137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68430149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19635 + ... + 22855.

It is an arithmetic number, because the mean of its divisors is an integer number (5876928).

Almost surely, 2^68430145 is an apocalyptic number.

It is an amenable number.

68430145 is a deficient number, since it is larger than the sum of its proper divisors (25600703).

68430145 is a wasteful number, since it uses less digits than its factorization.

68430145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3840.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 68430145 is about 8272.2515072984. The cubic root of 68430145 is about 409.0243408258.

The spelling of 68430145 in words is "sixty-eight million, four hundred thirty thousand, one hundred forty-five".