70755145 has 8 divisors (see below), whose sum is σ = 89375040. Its totient is φ = 53624880.

The previous prime is 70755133. The next prime is 70755161. The reversal of 70755145 is 54155707.

It is a happy number.

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

It is not a de Polignac number, because 70755145 - 2⁷ = 70755017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70755145.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 372301 + ... + 372490.

It is an arithmetic number, because the mean of its divisors is an integer number (11171880).

Almost surely, 2^70755145 is an apocalyptic number.

It is an amenable number.

70755145 is a deficient number, since it is larger than the sum of its proper divisors (18619895).

70755145 is a wasteful number, since it uses less digits than its factorization.

70755145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744815.

The product of its (nonzero) digits is 24500, while the sum is 34.

The square root of 70755145 is about 8411.6077535748. The cubic root of 70755145 is about 413.6052173362.

The spelling of 70755145 in words is "seventy million, seven hundred fifty-five thousand, one hundred forty-five".