61242104 has 64 divisors (see below), whose sum is σ = 147087360. Its totient is φ = 23207040.

The previous prime is 61242101. The next prime is 61242119. The reversal of 61242104 is 40124216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61242101) 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, 21449 + ... + 24135.

It is an arithmetic number, because the mean of its divisors is an integer number (2298240).

Almost surely, 2^61242104 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 61242104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73543680).

61242104 is an abundant number, since it is smaller than the sum of its proper divisors (85845256).

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

61242104 is a wasteful number, since it uses less digits than its factorization.

61242104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2748 (or 2744 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 61242104 is about 7825.7334480546. The cubic root of 61242104 is about 394.1698186592.

It can be divided in two parts, 6124 and 2104, that added together give a palindrome (8228).

The spelling of 61242104 in words is "sixty-one million, two hundred forty-two thousand, one hundred four".