1920214505 has 16 divisors (see below), whose sum is σ = 2514651264. Its totient is φ = 1396010880.

The previous prime is 1920214487. The next prime is 1920214511. The reversal of 1920214505 is 5054120291.

It is not a de Polignac number, because 1920214505 - 2⁶ = 1920214441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216029 + ... + 224741.

It is an arithmetic number, because the mean of its divisors is an integer number (157165704).

Almost surely, 2^1920214505 is an apocalyptic number.

It is an amenable number.

1920214505 is a deficient number, since it is larger than the sum of its proper divisors (594436759).

1920214505 is a wasteful number, since it uses less digits than its factorization.

1920214505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12736.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 1920214505 is about 43820.2522242855. The cubic root of 1920214505 is about 1242.9392865544.

Adding to 1920214505 its reverse (5054120291), we get a palindrome (6974334796).

The spelling of 1920214505 in words is "one billion, nine hundred twenty million, two hundred fourteen thousand, five hundred five".