70605145 has 16 divisors (see below), whose sum is σ = 91671552. Its totient is φ = 51894720.

The previous prime is 70605137. The next prime is 70605149. The reversal of 70605145 is 54150607.

It is not a de Polignac number, because 70605145 - 2³ = 70605137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70605149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12060 + ... + 16930.

It is an arithmetic number, because the mean of its divisors is an integer number (5729472).

Almost surely, 2^70605145 is an apocalyptic number.

It is an amenable number.

70605145 is a deficient number, since it is larger than the sum of its proper divisors (21066407).

70605145 is a wasteful number, since it uses less digits than its factorization.

70605145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5112.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 70605145 is about 8402.6867726936. The cubic root of 70605145 is about 413.3127312977.

The spelling of 70605145 in words is "seventy million, six hundred five thousand, one hundred forty-five".