61333121 has 8 divisors (see below), whose sum is σ = 65620800. Its totient is φ = 57151440.

The previous prime is 61333091. The next prime is 61333163. The reversal of 61333121 is 12133316.

It is a happy number.

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 61333121 - 2¹⁰ = 61332097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61333093 and 61333102.

It is not an unprimeable number, because it can be changed into a prime (61333621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25301 + ... + 27618.

It is an arithmetic number, because the mean of its divisors is an integer number (8202600).

Almost surely, 2^61333121 is an apocalyptic number.

61333121 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

61333121 is a deficient number, since it is larger than the sum of its proper divisors (4287679).

61333121 is a wasteful number, since it uses less digits than its factorization.

61333121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52999.

The product of its digits is 324, while the sum is 20.

The square root of 61333121 is about 7831.5465267085. The cubic root of 61333121 is about 394.3649915542.

Adding to 61333121 its reverse (12133316), we get a palindrome (73466437).

The spelling of 61333121 in words is "sixty-one million, three hundred thirty-three thousand, one hundred twenty-one".