701667121 has 3 divisors (see below), whose sum is σ = 701693611. Its totient is φ = 701640632.

The previous prime is 701667119. The next prime is 701667157. The reversal of 701667121 is 121766107.

The square root of 701667121 is 26489.

It is a perfect power (a square), and thus also a powerful number.

701667121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 161569521 + 540097600 = 12711^2 + 23240^2 .

It is not a de Polignac number, because 701667121 - 2¹ = 701667119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (701667181) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 13245 + ... + 39733.

Almost surely, 2^701667121 is an apocalyptic number.

701667121 is the 26489-th square number.

701667121 is the 13245-th centered octagonal number.

It is an amenable number.

701667121 is a deficient number, since it is larger than the sum of its proper divisors (26490).

701667121 is an frugal number, since it uses more digits than its factorization.

701667121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52978 (or 26489 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 31.

The cubic root of 701667121 is about 888.6083207155.

The spelling of 701667121 in words is "seven hundred one million, six hundred sixty-seven thousand, one hundred twenty-one".