61401100 has 36 divisors (see below), whose sum is σ = 134757000. Its totient is φ = 24280960.

The previous prime is 61401079. The next prime is 61401101. The reversal of 61401100 is 110416.

It is not an unprimeable number, because it can be changed into a prime (61401101) 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 11 ways as a sum of consecutive naturals, for example, 5451 + ... + 12349.

It is an arithmetic number, because the mean of its divisors is an integer number (3743250).

Almost surely, 2^61401100 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 61401100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67378500).

61401100 is an abundant number, since it is smaller than the sum of its proper divisors (73355900).

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

61401100 is a wasteful number, since it uses less digits than its factorization.

61401100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7002 (or 6995 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 61401100 is about 7835.8853998766. The cubic root of 61401100 is about 394.5106368376.

Adding to 61401100 its reverse (110416), we get a palindrome (61511516).

The spelling of 61401100 in words is "sixty-one million, four hundred one thousand, one hundred".