1949005245 has 32 divisors (see below), whose sum is σ = 3403897344. Its totient is φ = 944417600.

The previous prime is 1949005231. The next prime is 1949005271. The reversal of 1949005245 is 5425009491.

It is not a de Polignac number, because 1949005245 - 2¹⁰ = 1949004221 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 494854 + ... + 498776.

It is an arithmetic number, because the mean of its divisors is an integer number (106371792).

Almost surely, 2^1949005245 is an apocalyptic number.

1949005245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1949005245 is a deficient number, since it is larger than the sum of its proper divisors (1454892099).

1949005245 is a wasteful number, since it uses less digits than its factorization.

1949005245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6953.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 1949005245 is about 44147.5395124122. The cubic root of 1949005245 is about 1249.1205002626.

The spelling of 1949005245 in words is "one billion, nine hundred forty-nine million, five thousand, two hundred forty-five".