61231452 has 48 divisors (see below), whose sum is σ = 151939200. Its totient is φ = 19137600.

The previous prime is 61231427. The next prime is 61231453. The reversal of 61231452 is 25413216.

61231452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61231453) 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 15 ways as a sum of consecutive naturals, for example, 21699 + ... + 24357.

It is an arithmetic number, because the mean of its divisors is an integer number (3165400).

Almost surely, 2^61231452 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 61231452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75969600).

61231452 is an abundant number, since it is smaller than the sum of its proper divisors (90707748).

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

61231452 is a wasteful number, since it uses less digits than its factorization.

61231452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786 (or 2784 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 61231452 is about 7825.0528432721. The cubic root of 61231452 is about 394.1469643368.

Adding to 61231452 its reverse (25413216), we get a palindrome (86644668).

The spelling of 61231452 in words is "sixty-one million, two hundred thirty-one thousand, four hundred fifty-two".