61061104 has 40 divisors (see below), whose sum is σ = 128259152. Its totient is φ = 27993600.

The previous prime is 61061101. The next prime is 61061107. The reversal of 61061104 is 40116016.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61061101) and next prime (61061107).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61061101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33004 + ... + 34804.

Almost surely, 2^61061104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61061104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64129576).

61061104 is an abundant number, since it is smaller than the sum of its proper divisors (67198048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61061104 is a wasteful number, since it uses less digits than its factorization.

61061104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985 (or 1979 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 61061104 is about 7814.1604795397. The cubic root of 61061104 is about 393.7811147328.

The spelling of 61061104 in words is "sixty-one million, sixty-one thousand, one hundred four".