61422121 has 8 divisors (see below), whose sum is σ = 64526400. Its totient is φ = 58354032.

The previous prime is 61422113. The next prime is 61422131. The reversal of 61422121 is 12122416.

61422121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 61422121 - 2³ = 61422113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61422131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5535 + ... + 12388.

It is an arithmetic number, because the mean of its divisors is an integer number (8065800).

Almost surely, 2^61422121 is an apocalyptic number.

It is an amenable number.

61422121 is a deficient number, since it is larger than the sum of its proper divisors (3104279).

61422121 is a wasteful number, since it uses less digits than its factorization.

61422121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18095.

The product of its digits is 192, while the sum is 19.

The square root of 61422121 is about 7837.2266140517. The cubic root of 61422121 is about 394.5556526538. Note that the first 3 decimals are identical.

Adding to 61422121 its reverse (12122416), we get a palindrome (73544537).

The spelling of 61422121 in words is "sixty-one million, four hundred twenty-two thousand, one hundred twenty-one".