1945969119 has 12 divisors (see below), whose sum is σ = 2933055216. Its totient is φ = 1240907712.

The previous prime is 1945969097. The next prime is 1945969127. The reversal of 1945969119 is 9119695491.

It is a happy number.

1945969119 is a `hidden beast` number, since 19 + 459 + 69 + 119 = 666.

It is not a de Polignac number, because 1945969119 - 2⁵ = 1945969087 is a prime.

It is a super-2 number, since 2×1945969119² = 7573591624203272322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945969199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4700202 + ... + 4700615.

It is an arithmetic number, because the mean of its divisors is an integer number (244421268).

Almost surely, 2^1945969119 is an apocalyptic number.

1945969119 is a deficient number, since it is larger than the sum of its proper divisors (987086097).

1945969119 is a wasteful number, since it uses less digits than its factorization.

1945969119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9400846 (or 9400843 counting only the distinct ones).

The product of its digits is 787320, while the sum is 54.

The square root of 1945969119 is about 44113.1399811893. The cubic root of 1945969119 is about 1248.4715438726.

The spelling of 1945969119 in words is "one billion, nine hundred forty-five million, nine hundred sixty-nine thousand, one hundred nineteen".