70161020 has 24 divisors (see below), whose sum is σ = 147991200. Its totient is φ = 27940032.

The previous prime is 70160999. The next prime is 70161043. The reversal of 70161020 is 2016107.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 70161020.

It is a congruent number.

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, 3080 + ... + 12239.

It is an arithmetic number, because the mean of its divisors is an integer number (6166300).

Almost surely, 2^70161020 is an apocalyptic number.

It is an amenable number.

70161020 is an abundant number, since it is smaller than the sum of its proper divisors (77830180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70161020 is a wasteful number, since it uses less digits than its factorization.

70161020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15557 (or 15555 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 70161020 is about 8376.2175234410. The cubic root of 70161020 is about 412.4442924465. Note that the first 3 decimals are identical.

Adding to 70161020 its reverse (2016107), we get a palindrome (72177127).

The spelling of 70161020 in words is "seventy million, one hundred sixty-one thousand, twenty".