101561441 has 8 divisors (see below), whose sum is σ = 107448000. Its totient is φ = 95729040.

The previous prime is 101561431. The next prime is 101561477. The reversal of 101561441 is 144165101.

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 101561441 - 2²⁶ = 34452577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (101561431) 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, 9650 + ... + 17211.

It is an arithmetic number, because the mean of its divisors is an integer number (13431000).

Almost surely, 2^101561441 is an apocalyptic number.

It is an amenable number.

101561441 is a deficient number, since it is larger than the sum of its proper divisors (5886559).

101561441 is a wasteful number, since it uses less digits than its factorization.

101561441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27079.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 101561441 is about 10077.7696441227. The cubic root of 101561441 is about 466.5622729640.

The spelling of 101561441 in words is "one hundred one million, five hundred sixty-one thousand, four hundred forty-one".