61135230 has 64 divisors (see below), whose sum is σ = 167323968. Its totient is φ = 14161920.

The previous prime is 61135201. The next prime is 61135231. The reversal of 61135230 is 3253116.

It is a junction number, because it is equal to n+sod(n) for n = 61135197 and 61135206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61135231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2020 + ... + 11240.

It is an arithmetic number, because the mean of its divisors is an integer number (2614437).

Almost surely, 2^61135230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61135230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83661984).

61135230 is an abundant number, since it is smaller than the sum of its proper divisors (106188738).

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

61135230 is a wasteful number, since it uses less digits than its factorization.

61135230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9261.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 61135230 is about 7818.9020968420. The cubic root of 61135230 is about 393.9403957006.

Adding to 61135230 its reverse (3253116), we get a palindrome (64388346).

The spelling of 61135230 in words is "sixty-one million, one hundred thirty-five thousand, two hundred thirty".