1061641 has 8 divisors (see below), whose sum is σ = 1246400. Its totient is φ = 885168.

The previous prime is 1061629. The next prime is 1061647. The reversal of 1061641 is 1461601.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1061641 - 2⁵ = 1061609 is a prime.

It is a super-2 number, since 2×1061641² = 2254163225762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1061647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1791 + ... + 2308.

It is an arithmetic number, because the mean of its divisors is an integer number (155800).

2^1061641 is an apocalyptic number.

It is an amenable number.

1061641 is a deficient number, since it is larger than the sum of its proper divisors (184759).

1061641 is an equidigital number, since it uses as much as digits as its factorization.

1061641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4143.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1061641 is about 1030.3596459489. The cubic root of 1061641 is about 102.0138709830.

The spelling of 1061641 in words is "one million, sixty-one thousand, six hundred forty-one".