61121063 has 4 divisors (see below), whose sum is σ = 61587768. Its totient is φ = 60654360.

The previous prime is 61121041. The next prime is 61121101. The reversal of 61121063 is 36012116.

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

It is a cyclic number.

It is not a de Polignac number, because 61121063 - 2¹⁴ = 61104679 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 (61121563) 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, 233156 + ... + 233417.

It is an arithmetic number, because the mean of its divisors is an integer number (15396942).

Almost surely, 2^61121063 is an apocalyptic number.

61121063 is a deficient number, since it is larger than the sum of its proper divisors (466705).

61121063 is a wasteful number, since it uses less digits than its factorization.

61121063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466704.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 61121063 is about 7817.9960987455. The cubic root of 61121063 is about 393.9099637945.

Adding to 61121063 its reverse (36012116), we get a palindrome (97133179).

The spelling of 61121063 in words is "sixty-one million, one hundred twenty-one thousand, sixty-three".