61361063 has 4 divisors (see below), whose sum is σ = 61600080. Its totient is φ = 61122048.

The previous prime is 61361017. The next prime is 61361077. The reversal of 61361063 is 36016316.

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 61361063 - 2²⁰ = 60312487 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 (61361093) 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, 119123 + ... + 119636.

It is an arithmetic number, because the mean of its divisors is an integer number (15400020).

Almost surely, 2^61361063 is an apocalyptic number.

61361063 is a deficient number, since it is larger than the sum of its proper divisors (239017).

61361063 is a wasteful number, since it uses less digits than its factorization.

61361063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239016.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 61361063 is about 7833.3302624107. The cubic root of 61361063 is about 394.4248704225.

Adding to 61361063 its reverse (36016316), we get a palindrome (97377379).

The spelling of 61361063 in words is "sixty-one million, three hundred sixty-one thousand, sixty-three".