101032661 has 4 divisors (see below), whose sum is σ = 101190432. Its totient is φ = 100874892.

The previous prime is 101032639. The next prime is 101032667. The reversal of 101032661 is 166230101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 166230101 = 53 ⋅3136417.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101032661 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 (101032667) 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, 77921 + ... + 79206.

It is an arithmetic number, because the mean of its divisors is an integer number (25297608).

Almost surely, 2^101032661 is an apocalyptic number.

It is an amenable number.

101032661 is a deficient number, since it is larger than the sum of its proper divisors (157771).

101032661 is an equidigital number, since it uses as much as digits as its factorization.

101032661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157770.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 101032661 is about 10051.5004352584. The cubic root of 101032661 is about 465.7511442441.

Adding to 101032661 its reverse (166230101), we get a palindrome (267262762).

The spelling of 101032661 in words is "one hundred one million, thirty-two thousand, six hundred sixty-one".