101542201 has 4 divisors (see below), whose sum is σ = 101764852. Its totient is φ = 101319552.

The previous prime is 101542193. The next prime is 101542211. The reversal of 101542201 is 102245101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64818601 + 36723600 = 8051^2 + 6060^2 .

It is a cyclic number.

It is not a de Polignac number, because 101542201 - 2³ = 101542193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101542211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110640 + ... + 111553.

It is an arithmetic number, because the mean of its divisors is an integer number (25441213).

Almost surely, 2^101542201 is an apocalyptic number.

It is an amenable number.

101542201 is a deficient number, since it is larger than the sum of its proper divisors (222651).

101542201 is an equidigital number, since it uses as much as digits as its factorization.

101542201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222650.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 101542201 is about 10076.8150226150. The cubic root of 101542201 is about 466.5328089438.

Adding to 101542201 its reverse (102245101), we get a palindrome (203787302).

The spelling of 101542201 in words is "one hundred one million, five hundred forty-two thousand, two hundred one".