1051865 has 8 divisors (see below), whose sum is σ = 1280448. Its totient is φ = 829360.

The previous prime is 1051849. The next prime is 1051879. The reversal of 1051865 is 5681501.

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

It is not a de Polignac number, because 1051865 - 2⁴ = 1051849 is a prime.

It is a super-2 number, since 2×1051865² = 2212839956450, which contains 22 as substring.

It is a Duffinian 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, 1127 + ... + 1836.

It is an arithmetic number, because the mean of its divisors is an integer number (160056).

2^1051865 is an apocalyptic number.

It is an amenable number.

1051865 is a deficient number, since it is larger than the sum of its proper divisors (228583).

1051865 is an equidigital number, since it uses as much as digits as its factorization.

1051865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3039.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1051865 is about 1025.6046996772. The cubic root of 1051865 is about 101.6997772056.

The spelling of 1051865 in words is "one million, fifty-one thousand, eight hundred sixty-five".