61054643 has 8 divisors (see below), whose sum is σ = 65888928. Its totient is φ = 56240064.

The previous prime is 61054607. The next prime is 61054649. The reversal of 61054643 is 34645016.

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 61054643 - 2⁶ = 61054579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61054649) 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, 1871 + ... + 11207.

It is an arithmetic number, because the mean of its divisors is an integer number (8236116).

Almost surely, 2^61054643 is an apocalyptic number.

61054643 is a deficient number, since it is larger than the sum of its proper divisors (4834285).

61054643 is a wasteful number, since it uses less digits than its factorization.

61054643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9853.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 61054643 is about 7813.7470524710. The cubic root of 61054643 is about 393.7672253151.

Adding to 61054643 its reverse (34645016), we get a palindrome (95699659).

The spelling of 61054643 in words is "sixty-one million, fifty-four thousand, six hundred forty-three".