70148305 has 4 divisors (see below), whose sum is σ = 84177972. Its totient is φ = 56118640.

The previous prime is 70148297. The next prime is 70148327. The reversal of 70148305 is 50384107.

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 32901696 + 37246609 = 5736^2 + 6103^2 .

It is not a de Polignac number, because 70148305 - 2³ = 70148297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7014826 + ... + 7014835.

It is an arithmetic number, because the mean of its divisors is an integer number (21044493).

Almost surely, 2^70148305 is an apocalyptic number.

It is an amenable number.

70148305 is a deficient number, since it is larger than the sum of its proper divisors (14029667).

70148305 is a wasteful number, since it uses less digits than its factorization.

70148305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14029666.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 70148305 is about 8375.4584949124. The cubic root of 70148305 is about 412.4193757335.

The spelling of 70148305 in words is "seventy million, one hundred forty-eight thousand, three hundred five".