700215121 has 8 divisors (see below), whose sum is σ = 743938920. Its totient is φ = 657796608.

The previous prime is 700215119. The next prime is 700215163. The reversal of 700215121 is 121512007.

It can be written as a sum of positive squares in 4 ways, for example, as 374809600 + 325405521 = 19360^2 + 18039^2 .

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 700215121 - 2¹ = 700215119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (700215101) 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 7 ways as a sum of consecutive naturals, for example, 325216 + ... + 327361.

It is an arithmetic number, because the mean of its divisors is an integer number (92992365).

Almost surely, 2^700215121 is an apocalyptic number.

It is an amenable number.

700215121 is a deficient number, since it is larger than the sum of its proper divisors (43723799).

700215121 is a wasteful number, since it uses less digits than its factorization.

700215121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652643.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 700215121 is about 26461.5782031231. The cubic root of 700215121 is about 887.9949480443.

Adding to 700215121 its reverse (121512007), we get a palindrome (821727128).

It can be divided in two parts, 700215 and 121, that added together give a triangular number (700336 = T₁₁₈₃).

The spelling of 700215121 in words is "seven hundred million, two hundred fifteen thousand, one hundred twenty-one".