61100101 has 16 divisors (see below), whose sum is σ = 65075200. Its totient is φ = 57283200.

The previous prime is 61100093. The next prime is 61100147. The reversal of 61100101 is 10100116.

It is a cyclic number.

It is not a de Polignac number, because 61100101 - 2³ = 61100093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61100401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149185 + ... + 149593.

It is an arithmetic number, because the mean of its divisors is an integer number (4067200).

Almost surely, 2^61100101 is an apocalyptic number.

61100101 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

61100101 is a deficient number, since it is larger than the sum of its proper divisors (3975099).

61100101 is a wasteful number, since it uses less digits than its factorization.

61100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 61100101 is about 7816.6553589115. The cubic root of 61100101 is about 393.8649270299.

Adding to 61100101 its reverse (10100116), we get a palindrome (71200217).

The spelling of 61100101 in words is "sixty-one million, one hundred thousand, one hundred one".