70107121 has 16 divisors (see below), whose sum is σ = 81379584. Its totient is φ = 59157504.

The previous prime is 70107109. The next prime is 70107143. The reversal of 70107121 is 12170107.

It is not a de Polignac number, because 70107121 - 2¹¹ = 70105073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70107161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207865 + ... + 208201.

It is an arithmetic number, because the mean of its divisors is an integer number (5086224).

Almost surely, 2^70107121 is an apocalyptic number.

It is an amenable number.

70107121 is a deficient number, since it is larger than the sum of its proper divisors (11272463).

70107121 is a wasteful number, since it uses less digits than its factorization.

70107121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720.

The product of its (nonzero) digits is 98, while the sum is 19.

The square root of 70107121 is about 8372.9995222740. Note that the first 3 decimals coincide. The cubic root of 70107121 is about 412.3386495984.

Adding to 70107121 its reverse (12170107), we get a palindrome (82277228).

The spelling of 70107121 in words is "seventy million, one hundred seven thousand, one hundred twenty-one".