103056661 has 4 divisors (see below), whose sum is σ = 103484524. Its totient is φ = 102628800.

The previous prime is 103056659. The next prime is 103056671. The reversal of 103056661 is 166650301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69056100 + 34000561 = 8310^2 + 5831^2 .

It is a cyclic number.

It is not a de Polignac number, because 103056661 - 2¹ = 103056659 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 (103056631) 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, 213570 + ... + 214051.

It is an arithmetic number, because the mean of its divisors is an integer number (25871131).

Almost surely, 2^103056661 is an apocalyptic number.

It is an amenable number.

103056661 is a deficient number, since it is larger than the sum of its proper divisors (427863).

103056661 is an equidigital number, since it uses as much as digits as its factorization.

103056661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427862.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 103056661 is about 10151.6826684053. The cubic root of 103056661 is about 468.8407540785.

The spelling of 103056661 in words is "one hundred three million, fifty-six thousand, six hundred sixty-one".