70560121 has 8 divisors (see below), whose sum is σ = 71824104. Its totient is φ = 69304320.

The previous prime is 70560109. The next prime is 70560151. The reversal of 70560121 is 12106507.

70560121 = 83² + 84² + ... + 596².

It can be written as a sum of positive squares in 4 ways, for example, as 31360000 + 39200121 = 5600^2 + 6261^2 .

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 70560121 - 2⁹ = 70559609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70560092 and 70560101.

It is not an unprimeable number, because it can be changed into a prime (70560101) by changing a digit.

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, 16881 + ... + 20641.

It is an arithmetic number, because the mean of its divisors is an integer number (8978013).

Almost surely, 2^70560121 is an apocalyptic number.

It is an amenable number.

70560121 is a deficient number, since it is larger than the sum of its proper divisors (1263983).

70560121 is a wasteful number, since it uses less digits than its factorization.

70560121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 70560121 is about 8400.0072023779. The cubic root of 70560121 is about 413.2248578649.

Adding to 70560121 its reverse (12106507), we get a palindrome (82666628).

The spelling of 70560121 in words is "seventy million, five hundred sixty thousand, one hundred twenty-one".