101538061 has 4 divisors (see below), whose sum is σ = 101692800. Its totient is φ = 101383324.

The previous prime is 101538037. The next prime is 101538097. The reversal of 101538061 is 160835101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101538061 - 2¹¹ = 101536013 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 (101538461) 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, 76381 + ... + 77698.

It is an arithmetic number, because the mean of its divisors is an integer number (25423200).

Almost surely, 2^101538061 is an apocalyptic number.

It is an amenable number.

101538061 is a deficient number, since it is larger than the sum of its proper divisors (154739).

101538061 is an equidigital number, since it uses as much as digits as its factorization.

101538061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154738.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 101538061 is about 10076.6095984711. The cubic root of 101538061 is about 466.5264684861.

The spelling of 101538061 in words is "one hundred one million, five hundred thirty-eight thousand, sixty-one".