61103380 has 24 divisors (see below), whose sum is σ = 138188232. Its totient is φ = 22561152.

The previous prime is 61103351. The next prime is 61103417. The reversal of 61103380 is 8330116.

It can be written as a sum of positive squares in 4 ways, for example, as 169744 + 60933636 = 412^2 + 7806^2 .

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, 117247 + ... + 117766.

It is an arithmetic number, because the mean of its divisors is an integer number (5757843).

Almost surely, 2^61103380 is an apocalyptic number.

It is an amenable number.

61103380 is an abundant number, since it is smaller than the sum of its proper divisors (77084852).

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

61103380 is a wasteful number, since it uses less digits than its factorization.

61103380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235035 (or 235033 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 61103380 is about 7816.8651005374. The cubic root of 61103380 is about 393.8719726265.

Adding to 61103380 its reverse (8330116), we get a palindrome (69433496).

The spelling of 61103380 in words is "sixty-one million, one hundred three thousand, three hundred eighty".