101565961 has 8 divisors (see below), whose sum is σ = 116312000. Its totient is φ = 86879088.

The previous prime is 101565949. The next prime is 101565977. The reversal of 101565961 is 169565101.

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 101565961 - 2⁷ = 101565833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101565901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11046 + ... + 18031.

It is an arithmetic number, because the mean of its divisors is an integer number (14539000).

Almost surely, 2^101565961 is an apocalyptic number.

It is an amenable number.

101565961 is a deficient number, since it is larger than the sum of its proper divisors (14746039).

101565961 is an equidigital number, since it uses as much as digits as its factorization.

101565961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29583.

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 101565961 is about 10077.9938975969. The cubic root of 101565961 is about 466.5691943250.

The spelling of 101565961 in words is "one hundred one million, five hundred sixty-five thousand, nine hundred sixty-one".