70147345 has 8 divisors (see below), whose sum is σ = 84444264. Its totient is φ = 55939584.

The previous prime is 70147333. The next prime is 70147387. The reversal of 70147345 is 54374107.

It can be written as a sum of positive squares in 4 ways, for example, as 7230721 + 62916624 = 2689^2 + 7932^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70147345 - 2²¹ = 68050193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20544 + ... + 23713.

It is an arithmetic number, because the mean of its divisors is an integer number (10555533).

Almost surely, 2^70147345 is an apocalyptic number.

It is an amenable number.

70147345 is a deficient number, since it is larger than the sum of its proper divisors (14296919).

70147345 is a wasteful number, since it uses less digits than its factorization.

70147345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44579.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 70147345 is about 8375.4011844210. The cubic root of 70147345 is about 412.4174943651.

The spelling of 70147345 in words is "seventy million, one hundred forty-seven thousand, three hundred forty-five".