1920115 has 16 divisors (see below), whose sum is σ = 2413152. Its totient is φ = 1465344.

The previous prime is 1920101. The next prime is 1920143. The reversal of 1920115 is 5110291.

It is a cyclic number.

It is not a de Polignac number, because 1920115 - 2⁷ = 1919987 is a prime.

It is a super-2 number, since 2×1920115² = 7373683226450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1920092 and 1920101.

It is a congruent 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, 17892 + ... + 17998.

It is an arithmetic number, because the mean of its divisors is an integer number (150822).

2^1920115 is an apocalyptic number.

1920115 is a deficient number, since it is larger than the sum of its proper divisors (493037).

1920115 is a wasteful number, since it uses less digits than its factorization.

1920115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246.

The product of its (nonzero) digits is 90, while the sum is 19.

The square root of 1920115 is about 1385.6821424843. The cubic root of 1920115 is about 124.2917816590.

The spelling of 1920115 in words is "one million, nine hundred twenty thousand, one hundred fifteen".