61101432 has 192 divisors, whose sum is σ = 206841600. Its totient is φ = 16632000.

The previous prime is 61101431. The next prime is 61101449. The reversal of 61101432 is 23410116.

It is a happy number.

61101432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61101431) 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 47 ways as a sum of consecutive naturals, for example, 243307 + ... + 243557.

It is an arithmetic number, because the mean of its divisors is an integer number (1077300).

Almost surely, 2^61101432 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 61101432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103420800).

61101432 is an abundant number, since it is smaller than the sum of its proper divisors (145740168).

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

61101432 is a wasteful number, since it uses less digits than its factorization.

61101432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 61101432 is about 7816.7404971638. The cubic root of 61101432 is about 393.8677869837.

Adding to 61101432 its reverse (23410116), we get a palindrome (84511548).

The spelling of 61101432 in words is "sixty-one million, one hundred one thousand, four hundred thirty-two".