101611057 has 4 divisors (see below), whose sum is σ = 107588196. Its totient is φ = 95633920.

The previous prime is 101611043. The next prime is 101611063. The reversal of 101611057 is 750116101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 750116101 = 7 ⋅107159443.

It can be written as a sum of positive squares in 2 ways, for example, as 40755456 + 60855601 = 6384^2 + 7801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101611057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101681057) 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, 2988544 + ... + 2988577.

It is an arithmetic number, because the mean of its divisors is an integer number (26897049).

Almost surely, 2^101611057 is an apocalyptic number.

101611057 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

101611057 is a deficient number, since it is larger than the sum of its proper divisors (5977139).

101611057 is an equidigital number, since it uses as much as digits as its factorization.

101611057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5977138.

The product of its (nonzero) digits is 210, while the sum is 22.

The square root of 101611057 is about 10080.2309993373. The cubic root of 101611057 is about 466.6382374405.

Adding to 101611057 its reverse (750116101), we get a palindrome (851727158).

The spelling of 101611057 in words is "one hundred one million, six hundred eleven thousand, fifty-seven".