670254121 has 4 divisors (see below), whose sum is σ = 709680852. Its totient is φ = 630827392.

The previous prime is 670254113. The next prime is 670254139. The reversal of 670254121 is 121452076.

670254121 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.

It can be written as a sum of positive squares in 2 ways, for example, as 374035600 + 296218521 = 19340^2 + 17211^2 .

It is a cyclic number.

It is not a de Polignac number, because 670254121 - 2³ = 670254113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 670254121.

It is not an unprimeable number, because it can be changed into a prime (670254521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19713340 + ... + 19713373.

It is an arithmetic number, because the mean of its divisors is an integer number (177420213).

Almost surely, 2^670254121 is an apocalyptic number.

It is an amenable number.

670254121 is a deficient number, since it is larger than the sum of its proper divisors (39426731).

670254121 is a wasteful number, since it uses less digits than its factorization.

670254121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39426730.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 670254121 is about 25889.2665210894. The cubic root of 670254121 is about 875.1446274132.

The spelling of 670254121 in words is "six hundred seventy million, two hundred fifty-four thousand, one hundred twenty-one".