1945111342 has 16 divisors (see below), whose sum is σ = 2979653040. Its totient is φ = 951979392.

The previous prime is 1945111319. The next prime is 1945111361. The reversal of 1945111342 is 2431115491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24709 + ... + 67087.

It is an arithmetic number, because the mean of its divisors is an integer number (186228315).

Almost surely, 2^1945111342 is an apocalyptic number.

1945111342 is a deficient number, since it is larger than the sum of its proper divisors (1034541698).

1945111342 is a wasteful number, since it uses less digits than its factorization.

1945111342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42867.

The product of its digits is 4320, while the sum is 31.

The square root of 1945111342 is about 44103.4164436271. The cubic root of 1945111342 is about 1248.2880761504.

The spelling of 1945111342 in words is "one billion, nine hundred forty-five million, one hundred eleven thousand, three hundred forty-two".