61012230 has 64 divisors (see below), whose sum is σ = 159494400. Its totient is φ = 14878080.

The previous prime is 61012229. The next prime is 61012319. The reversal of 61012230 is 3221016.

61012230 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 (15).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 14685 + ... + 18375.

It is an arithmetic number, because the mean of its divisors is an integer number (2492100).

Almost surely, 2^61012230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61012230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79747200).

61012230 is an abundant number, since it is smaller than the sum of its proper divisors (98482170).

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

61012230 is a wasteful number, since it uses less digits than its factorization.

61012230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 61012230 is about 7811.0325821878. The cubic root of 61012230 is about 393.6760243995.

Adding to 61012230 its reverse (3221016), we get a palindrome (64233246).

The spelling of 61012230 in words is "sixty-one million, twelve thousand, two hundred thirty".