1920513 has 8 divisors (see below), whose sum is σ = 2926528. Its totient is φ = 1097424.

The previous prime is 1920497. The next prime is 1920521. The reversal of 1920513 is 3150291.

1920513 is nontrivially palindromic in base 11.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1920513 - 2⁴ = 1920497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 91453 = 1920513 / (1 + 9 + 2 + 0 + 5 + 1 + 3).

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

1920513 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1920513.

It is not an unprimeable number, because it can be changed into a prime (1920533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45706 + ... + 45747.

It is an arithmetic number, because the mean of its divisors is an integer number (365816).

2^1920513 is an apocalyptic number.

It is an amenable number.

1920513 is a deficient number, since it is larger than the sum of its proper divisors (1006015).

1920513 is an equidigital number, since it uses as much as digits as its factorization.

1920513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91463.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 1920513 is about 1385.8257466218. The cubic root of 1920513 is about 124.3003687682.

The spelling of 1920513 in words is "one million, nine hundred twenty thousand, five hundred thirteen".