61615230 has 16 divisors (see below), whose sum is σ = 147876624. Its totient is φ = 16430720.

The previous prime is 61615223. The next prime is 61615241. The reversal of 61615230 is 3251616.

It is a self number, because there is not a number n which added to its sum of digits gives 61615230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1026891 + ... + 1026950.

It is an arithmetic number, because the mean of its divisors is an integer number (9242289).

Almost surely, 2^61615230 is an apocalyptic number.

61615230 is an abundant number, since it is smaller than the sum of its proper divisors (86261394).

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

61615230 is a wasteful number, since it uses less digits than its factorization.

61615230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053851.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 61615230 is about 7849.5369290169. The cubic root of 61615230 is about 394.9687098004.

Adding to 61615230 its reverse (3251616), we get a palindrome (64866846).

The spelling of 61615230 in words is "sixty-one million, six hundred fifteen thousand, two hundred thirty".