61103263 has 24 divisors (see below), whose sum is σ = 69954864. Its totient is φ = 53032320.

The previous prime is 61103257. The next prime is 61103267. The reversal of 61103263 is 36230116.

It is a de Polignac number, because none of the positive numbers 2^k-61103263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61103267) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 836995 + ... + 837067.

It is an arithmetic number, because the mean of its divisors is an integer number (2914786).

Almost surely, 2^61103263 is an apocalyptic number.

61103263 is a deficient number, since it is larger than the sum of its proper divisors (8851601).

61103263 is a wasteful number, since it uses less digits than its factorization.

61103263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 61103263 is about 7816.8576167153. The cubic root of 61103263 is about 393.8717212326.

Adding to 61103263 its reverse (36230116), we get a palindrome (97333379).

The spelling of 61103263 in words is "sixty-one million, one hundred three thousand, two hundred sixty-three".