61323270 has 64 divisors (see below), whose sum is σ = 153114624. Its totient is φ = 15701760.

The previous prime is 61323259. The next prime is 61323271. The reversal of 61323270 is 7232316.

61323270 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61323270.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61323271) 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 31 ways as a sum of consecutive naturals, for example, 216549 + ... + 216831.

It is an arithmetic number, because the mean of its divisors is an integer number (2392416).

Almost surely, 2^61323270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61323270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76557312).

61323270 is an abundant number, since it is smaller than the sum of its proper divisors (91791354).

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

61323270 is a wasteful number, since it uses less digits than its factorization.

61323270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 61323270 is about 7830.9175707576. The cubic root of 61323270 is about 394.3438768205.

Adding to 61323270 its reverse (7232316), we get a palindrome (68555586).

The spelling of 61323270 in words is "sixty-one million, three hundred twenty-three thousand, two hundred seventy".