61102263 has 4 divisors (see below), whose sum is σ = 81469688. Its totient is φ = 40734840.

The previous prime is 61102253. The next prime is 61102277. The reversal of 61102263 is 36220116.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 61102263 - 2⁵ = 61102231 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 (61102253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10183708 + ... + 10183713.

It is an arithmetic number, because the mean of its divisors is an integer number (20367422).

Almost surely, 2^61102263 is an apocalyptic number.

61102263 is a deficient number, since it is larger than the sum of its proper divisors (20367425).

61102263 is a wasteful number, since it uses less digits than its factorization.

61102263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20367424.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 61102263 is about 7816.7936521313. The cubic root of 61102263 is about 393.8695725537.

Adding to 61102263 its reverse (36220116), we get a palindrome (97322379).

The spelling of 61102263 in words is "sixty-one million, one hundred two thousand, two hundred sixty-three".