101447661 has 8 divisors (see below), whose sum is σ = 154586944. Its totient is φ = 57970080.

The previous prime is 101447639. The next prime is 101447677. The reversal of 101447661 is 166744101.

101447661 = T₁₇₆₃ + T₁₇₆₄ + ... + T₁₈₂₅.

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

It is not a de Polignac number, because 101447661 - 2⁹ = 101447149 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 (101447681) 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, 2415400 + ... + 2415441.

It is an arithmetic number, because the mean of its divisors is an integer number (19323368).

Almost surely, 2^101447661 is an apocalyptic number.

It is an amenable number.

101447661 is a deficient number, since it is larger than the sum of its proper divisors (53139283).

101447661 is an equidigital number, since it uses as much as digits as its factorization.

101447661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4830851.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 101447661 is about 10072.1229639039. The cubic root of 101447661 is about 466.3879768556.

The spelling of 101447661 in words is "one hundred one million, four hundred forty-seven thousand, six hundred sixty-one".