1671051 has 4 divisors (see below), whose sum is σ = 2228072. Its totient is φ = 1114032.

The previous prime is 1671041. The next prime is 1671053. The reversal of 1671051 is 1501761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1501761 = 3 ⋅500587.

It is not a de Polignac number, because 1671051 - 2⁷ = 1670923 is a prime.

It is a super-2 number, since 2×1671051² = 5584822889202, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1671053) 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, 278506 + ... + 278511.

It is an arithmetic number, because the mean of its divisors is an integer number (557018).

2^1671051 is an apocalyptic number.

1671051 is a deficient number, since it is larger than the sum of its proper divisors (557021).

1671051 is an equidigital number, since it uses as much as digits as its factorization.

1671051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557020.

The product of its (nonzero) digits is 210, while the sum is 21.

The square root of 1671051 is about 1292.6913784813. The cubic root of 1671051 is about 118.6669831593. Note that the first 3 decimals are identical.

It can be divided in two parts, 16710 and 51, that added together give a palindrome (16761).

The spelling of 1671051 in words is "one million, six hundred seventy-one thousand, fifty-one".