313749433 has 16 divisors (see below), whose sum is σ = 341228160. Its totient is φ = 287375616.

The previous prime is 313749427. The next prime is 313749473. The reversal of 313749433 is 334947313.

It is not a de Polignac number, because 313749433 - 2²¹ = 311652281 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313749392 and 313749401.

It is not an unprimeable number, because it can be changed into a prime (313749473) 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, 101791 + ... + 104827.

It is an arithmetic number, because the mean of its divisors is an integer number (21326760).

Almost surely, 2^313749433 is an apocalyptic number.

It is an amenable number.

313749433 is a deficient number, since it is larger than the sum of its proper divisors (27478727).

313749433 is a wasteful number, since it uses less digits than its factorization.

313749433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216.

The product of its digits is 81648, while the sum is 37.

The square root of 313749433 is about 17712.9735787078. The cubic root of 313749433 is about 679.5075969575.

The spelling of 313749433 in words is "three hundred thirteen million, seven hundred forty-nine thousand, four hundred thirty-three".