1030861 has 8 divisors (see below), whose sum is σ = 1118880. Its totient is φ = 944112.

The previous prime is 1030847. The next prime is 1030867. The reversal of 1030861 is 1680301.

It is the 415-th star number.

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

It is not a de Polignac number, because 1030861 - 2⁹ = 1030349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2106 + ... + 2548.

It is an arithmetic number, because the mean of its divisors is an integer number (139860).

2^1030861 is an apocalyptic number.

It is an amenable number.

1030861 is a deficient number, since it is larger than the sum of its proper divisors (88019).

1030861 is a wasteful number, since it uses less digits than its factorization.

1030861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635.

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

The square root of 1030861 is about 1015.3132521542. The cubic root of 1030861 is about 101.0182955453.

It can be divided in two parts, 1030 and 861, that added together give a triangular number (1891 = T₆₁).

The spelling of 1030861 in words is "one million, thirty thousand, eight hundred sixty-one".