1071555 has 8 divisors (see below), whose sum is σ = 1714512. Its totient is φ = 571488.

The previous prime is 1071541. The next prime is 1071563. The reversal of 1071555 is 5551701.

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

It is not a de Polignac number, because 1071555 - 2¹¹ = 1069507 is a prime.

It is a super-2 number, since 2×1071555² = 2296460236050, which contains 22 as substring.

1071555 is a lucky 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, 35704 + ... + 35733.

It is an arithmetic number, because the mean of its divisors is an integer number (214314).

2^1071555 is an apocalyptic number.

1071555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1071555 is a deficient number, since it is larger than the sum of its proper divisors (642957).

1071555 is an equidigital number, since it uses as much as digits as its factorization.

1071555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71445.

The product of its (nonzero) digits is 875, while the sum is 24.

The square root of 1071555 is about 1035.1594080141. The cubic root of 1071555 is about 102.3304354899.

The spelling of 1071555 in words is "one million, seventy-one thousand, five hundred fifty-five".