61212230 has 8 divisors (see below), whose sum is σ = 110182032. Its totient is φ = 24484888.

The previous prime is 61212227. The next prime is 61212233. The reversal of 61212230 is 3221216.

It is an interprime number because it is at equal distance from previous prime (61212227) and next prime (61212233).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 61212199 and 61212208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61212233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3060602 + ... + 3060621.

It is an arithmetic number, because the mean of its divisors is an integer number (13772754).

Almost surely, 2^61212230 is an apocalyptic number.

61212230 is a deficient number, since it is larger than the sum of its proper divisors (48969802).

61212230 is a wasteful number, since it uses less digits than its factorization.

61212230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6121230.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 61212230 is about 7823.8245123469. The cubic root of 61212230 is about 394.1057160043.

Adding to 61212230 its reverse (3221216), we get a palindrome (64433446).

The spelling of 61212230 in words is "sixty-one million, two hundred twelve thousand, two hundred thirty".