70161605 has 8 divisors (see below), whose sum is σ = 84240000. Its totient is φ = 56098576.

The previous prime is 70161599. The next prime is 70161667. The reversal of 70161605 is 50616107.

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 70161605 - 2⁴ = 70161589 is a prime.

It is a congruent 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, 12656 + ... + 17334.

It is an arithmetic number, because the mean of its divisors is an integer number (10530000).

Almost surely, 2^70161605 is an apocalyptic number.

It is an amenable number.

70161605 is a deficient number, since it is larger than the sum of its proper divisors (14078395).

70161605 is a wasteful number, since it uses less digits than its factorization.

70161605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7683.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 70161605 is about 8376.2524436648. The cubic root of 70161605 is about 412.4454387584.

The spelling of 70161605 in words is "seventy million, one hundred sixty-one thousand, six hundred five".