61342530 has 32 divisors (see below), whose sum is σ = 147521088. Its totient is φ = 16324800.

The previous prime is 61342517. The next prime is 61342531. The reversal of 61342530 is 3524316.

It is a happy number.

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 61342530.

It is not an unprimeable number, because it can be changed into a prime (61342531) 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, 15340 + ... + 18920.

It is an arithmetic number, because the mean of its divisors is an integer number (4610034).

Almost surely, 2^61342530 is an apocalyptic number.

61342530 is an abundant number, since it is smaller than the sum of its proper divisors (86178558).

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

61342530 is a wasteful number, since it uses less digits than its factorization.

61342530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4162.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 61342530 is about 7832.1472151639. The cubic root of 61342530 is about 394.3851567896.

Adding to 61342530 its reverse (3524316), we get a palindrome (64866846).

The spelling of 61342530 in words is "sixty-one million, three hundred forty-two thousand, five hundred thirty".