61101189 has 8 divisors (see below), whose sum is σ = 90520320. Its totient is φ = 40734108.

The previous prime is 61101163. The next prime is 61101191. The reversal of 61101189 is 98110116.

It is not a de Polignac number, because 61101189 - 2⁸ = 61100933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2263007 = 61101189 / (6 + 1 + 1 + 0 + 1 + 1 + 8 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61101389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1131477 + ... + 1131530.

It is an arithmetic number, because the mean of its divisors is an integer number (11315040).

Almost surely, 2^61101189 is an apocalyptic number.

It is an amenable number.

61101189 is a deficient number, since it is larger than the sum of its proper divisors (29419131).

61101189 is a wasteful number, since it uses less digits than its factorization.

61101189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263016 (or 2263010 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 27.

The square root of 61101189 is about 7816.7249535851. The cubic root of 61101189 is about 393.8672648465.

The spelling of 61101189 in words is "sixty-one million, one hundred one thousand, one hundred eighty-nine".