308434133 has 4 divisors (see below), whose sum is σ = 352496160. Its totient is φ = 264372108.

The previous prime is 308434121. The next prime is 308434157. The reversal of 308434133 is 331434803.

It is a happy number.

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 not a de Polignac number, because 308434133 - 2¹⁴ = 308417749 is a prime.

It is a super-2 number, since 2×308434133² = 190263228798923378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 308434096 and 308434105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308434033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22031003 + ... + 22031016.

It is an arithmetic number, because the mean of its divisors is an integer number (88124040).

Almost surely, 2^308434133 is an apocalyptic number.

It is an amenable number.

308434133 is a deficient number, since it is larger than the sum of its proper divisors (44062027).

308434133 is an equidigital number, since it uses as much as digits as its factorization.

308434133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44062026.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 308434133 is about 17562.2929311636. The cubic root of 308434133 is about 675.6484909978.

Adding to 308434133 its reverse (331434803), we get a palindrome (639868936).

The spelling of 308434133 in words is "three hundred eight million, four hundred thirty-four thousand, one hundred thirty-three".