61200063 has 32 divisors (see below), whose sum is σ = 95846400. Its totient is φ = 38531808.

The previous prime is 61200053. The next prime is 61200071. The reversal of 61200063 is 36000216.

It is a happy number.

It is not a de Polignac number, because 61200063 - 2⁵ = 61200031 is a prime.

It is a super-2 number, since 2×61200063² = 7490895422407938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61200023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35970 + ... + 37632.

It is an arithmetic number, because the mean of its divisors is an integer number (2995200).

Almost surely, 2^61200063 is an apocalyptic number.

61200063 is a deficient number, since it is larger than the sum of its proper divisors (34646337).

61200063 is a wasteful number, since it uses less digits than its factorization.

61200063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748 (or 1742 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 61200063 is about 7823.0469128083. The cubic root of 61200063 is about 394.0796024756.

Adding to 61200063 its reverse (36000216), we get a palindrome (97200279).

The spelling of 61200063 in words is "sixty-one million, two hundred thousand, sixty-three".