308634121 has 4 divisors (see below), whose sum is σ = 309337600. Its totient is φ = 307930644.

The previous prime is 308634103. The next prime is 308634149. The reversal of 308634121 is 121436803.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 308634121 - 2¹¹ = 308632073 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 308634121.

It is not an unprimeable number, because it can be changed into a prime (308634721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351081 + ... + 351958.

It is an arithmetic number, because the mean of its divisors is an integer number (77334400).

Almost surely, 2^308634121 is an apocalyptic number.

It is an amenable number.

308634121 is a deficient number, since it is larger than the sum of its proper divisors (703479).

308634121 is an equidigital number, since it uses as much as digits as its factorization.

308634121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703478.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 308634121 is about 17567.9856841927. The cubic root of 308634121 is about 675.7944891027.

The spelling of 308634121 in words is "three hundred eight million, six hundred thirty-four thousand, one hundred twenty-one".