1949314509 has 6 divisors (see below), whose sum is σ = 2815676526. Its totient is φ = 1299543000.

The previous prime is 1949314439. The next prime is 1949314513. The reversal of 1949314509 is 9054139491.

1949314509 is a `hidden beast` number, since 19 + 493 + 145 + 0 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1671992100 + 277322409 = 40890^2 + 16653^2 .

It is not a de Polignac number, because 1949314509 - 2⁹ = 1949313997 is a prime.

It is a super-2 number, since 2×1949314509² = 7599654109995822162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949314559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108295242 + ... + 108295259.

It is an arithmetic number, because the mean of its divisors is an integer number (469279421).

Almost surely, 2^1949314509 is an apocalyptic number.

It is an amenable number.

1949314509 is a deficient number, since it is larger than the sum of its proper divisors (866362017).

1949314509 is a wasteful number, since it uses less digits than its factorization.

1949314509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216590507 (or 216590504 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 1949314509 is about 44151.0419922339. The cubic root of 1949314509 is about 1249.1865660283.

The spelling of 1949314509 in words is "one billion, nine hundred forty-nine million, three hundred fourteen thousand, five hundred nine".