61081233 has 8 divisors (see below), whose sum is σ = 81504000. Its totient is φ = 40689648.

The previous prime is 61081213. The next prime is 61081243. The reversal of 61081233 is 33218016.

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

It is not a de Polignac number, because 61081233 - 2⁵ = 61081201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61081213) 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, 2758 + ... + 11391.

It is an arithmetic number, because the mean of its divisors is an integer number (10188000).

Almost surely, 2^61081233 is an apocalyptic number.

It is an amenable number.

61081233 is a deficient number, since it is larger than the sum of its proper divisors (20422767).

61081233 is a wasteful number, since it uses less digits than its factorization.

61081233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15591.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 61081233 is about 7815.4483556607. The cubic root of 61081233 is about 393.8243804055.

Adding to 61081233 its reverse (33218016), we get a palindrome (94299249).

The spelling of 61081233 in words is "sixty-one million, eighty-one thousand, two hundred thirty-three".