674658121 has 2 divisors, whose sum is σ = 674658122. Its totient is φ = 674658120.

The previous prime is 674658091. The next prime is 674658151. The reversal of 674658121 is 121856476.

674658121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (674658091) and next prime (674658151).

It can be written as a sum of positive squares in only one way, i.e., 563587600 + 111070521 = 23740^2 + 10539^2 .

It is a cyclic number.

It is not a de Polignac number, because 674658121 - 2¹⁵ = 674625353 is a prime.

It is not a weakly prime, because it can be changed into another prime (674658151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337329060 + 337329061.

It is an arithmetic number, because the mean of its divisors is an integer number (337329061).

Almost surely, 2^674658121 is an apocalyptic number.

It is an amenable number.

674658121 is a deficient number, since it is larger than the sum of its proper divisors (1).

674658121 is an equidigital number, since it uses as much as digits as its factorization.

674658121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 40.

The square root of 674658121 is about 25974.1818157955. The cubic root of 674658121 is about 877.0571986373.

It can be divided in two parts, 674658 and 121, that multiplied together give a palindrome (81633618).

The spelling of 674658121 in words is "six hundred seventy-four million, six hundred fifty-eight thousand, one hundred twenty-one".