319249045 has 16 divisors (see below), whose sum is σ = 387388080. Its totient is φ = 252555264.

The previous prime is 319249043. The next prime is 319249079. The reversal of 319249045 is 540942913.

It can be written as a sum of positive squares in 8 ways, for example, as 82119844 + 237129201 = 9062^2 + 15399^2 .

It is a cyclic number.

It is not a de Polignac number, because 319249045 - 2¹ = 319249043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 319248995 and 319249013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319249043) 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, 213661 + ... + 215149.

It is an arithmetic number, because the mean of its divisors is an integer number (24211755).

Almost surely, 2^319249045 is an apocalyptic number.

It is an amenable number.

319249045 is a deficient number, since it is larger than the sum of its proper divisors (68139035).

319249045 is a wasteful number, since it uses less digits than its factorization.

319249045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 319249045 is about 17867.5416607881. The cubic root of 319249045 is about 683.4549116745.

The spelling of 319249045 in words is "three hundred nineteen million, two hundred forty-nine thousand, forty-five".