70032121 has 8 divisors (see below), whose sum is σ = 70636104. Its totient is φ = 69431040.

The previous prime is 70032113. The next prime is 70032161. The reversal of 70032121 is 12123007.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9363600 + 60668521 = 3060^2 + 7789^2 .

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 70032121 - 2³ = 70032113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70032095 and 70032104.

It is not an unprimeable number, because it can be changed into a prime (70032101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84891 + ... + 85711.

It is an arithmetic number, because the mean of its divisors is an integer number (8829513).

Almost surely, 2^70032121 is an apocalyptic number.

It is an amenable number.

70032121 is a deficient number, since it is larger than the sum of its proper divisors (603983).

70032121 is a wasteful number, since it uses less digits than its factorization.

70032121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 70032121 is about 8368.5196420872. The cubic root of 70032121 is about 412.1915583436.

Adding to 70032121 its reverse (12123007), we get a palindrome (82155128).

The spelling of 70032121 in words is "seventy million, thirty-two thousand, one hundred twenty-one".