1045919 has 4 divisors (see below), whose sum is σ = 1195344. Its totient is φ = 896496.

The previous prime is 1045907. The next prime is 1045963. The reversal of 1045919 is 9195401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1045919 - 2⁴ = 1045903 is a prime.

It is a super-2 number, since 2×1045919² = 2187893109122, 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 = 1045891 and 1045900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74702 + ... + 74715.

It is an arithmetic number, because the mean of its divisors is an integer number (298836).

2^1045919 is an apocalyptic number.

1045919 is a deficient number, since it is larger than the sum of its proper divisors (149425).

1045919 is an equidigital number, since it uses as much as digits as its factorization.

1045919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149424.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 1045919 is about 1022.7018138245. The cubic root of 1045919 is about 101.5077849190.

The spelling of 1045919 in words is "one million, forty-five thousand, nine hundred nineteen".