303421139 has 16 divisors (see below), whose sum is σ = 350120448. Its totient is φ = 257574912.

The previous prime is 303421133. The next prime is 303421163. The reversal of 303421139 is 931124303.

It is a happy number.

It is not a de Polignac number, because 303421139 - 2⁴ = 303421123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (303421133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408002 + ... + 408744.

It is an arithmetic number, because the mean of its divisors is an integer number (21882528).

Almost surely, 2^303421139 is an apocalyptic number.

303421139 is a deficient number, since it is larger than the sum of its proper divisors (46699309).

303421139 is a wasteful number, since it uses less digits than its factorization.

303421139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 303421139 is about 17418.9878867861. The cubic root of 303421139 is about 671.9680302665.

The spelling of 303421139 in words is "three hundred three million, four hundred twenty-one thousand, one hundred thirty-nine".