101555441 has 4 divisors (see below), whose sum is σ = 109367412. Its totient is φ = 93743472.

The previous prime is 101555413. The next prime is 101555453. The reversal of 101555441 is 144555101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144555101 = 449 ⋅321949.

It can be written as a sum of positive squares in 2 ways, for example, as 51782416 + 49773025 = 7196^2 + 7055^2 .

It is a cyclic number.

It is not a de Polignac number, because 101555441 - 2²² = 97361137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101555441.

It is not an unprimeable number, because it can be changed into a prime (101555341) 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, 3905966 + ... + 3905991.

It is an arithmetic number, because the mean of its divisors is an integer number (27341853).

Almost surely, 2^101555441 is an apocalyptic number.

It is an amenable number.

101555441 is a deficient number, since it is larger than the sum of its proper divisors (7811971).

101555441 is an equidigital number, since it uses as much as digits as its factorization.

101555441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7811970.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 101555441 is about 10077.4719548109. The cubic root of 101555441 is about 466.5530849994.

The spelling of 101555441 in words is "one hundred one million, five hundred fifty-five thousand, four hundred forty-one".