70706545 has 16 divisors (see below), whose sum is σ = 104428800. Its totient is φ = 44754624.

The previous prime is 70706539. The next prime is 70706549. The reversal of 70706545 is 54560707.

It is a cyclic number.

It is not a de Polignac number, because 70706545 - 2⁹ = 70706033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70706545.

It is not an unprimeable number, because it can be changed into a prime (70706549) 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, 77245 + ... + 78154.

It is an arithmetic number, because the mean of its divisors is an integer number (6526800).

Almost surely, 2^70706545 is an apocalyptic number.

It is an amenable number.

70706545 is a deficient number, since it is larger than the sum of its proper divisors (33722255).

70706545 is a wasteful number, since it uses less digits than its factorization.

70706545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155424.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 70706545 is about 8408.7183922403. The cubic root of 70706545 is about 413.5104971682.

The spelling of 70706545 in words is "seventy million, seven hundred six thousand, five hundred forty-five".