61249443 has 8 divisors (see below), whose sum is σ = 82289856. Its totient is φ = 40521000.

The previous prime is 61249399. The next prime is 61249451. The reversal of 61249443 is 34494216.

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

It is not a de Polignac number, because 61249443 - 2⁸ = 61249187 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (61249343) 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, 77533 + ... + 78318.

It is an arithmetic number, because the mean of its divisors is an integer number (10286232).

Almost surely, 2^61249443 is an apocalyptic number.

61249443 is a deficient number, since it is larger than the sum of its proper divisors (21040413).

61249443 is a wasteful number, since it uses less digits than its factorization.

61249443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155985.

The product of its digits is 20736, while the sum is 33.

The square root of 61249443 is about 7826.2023357437. The cubic root of 61249443 is about 394.1855632563.

The spelling of 61249443 in words is "sixty-one million, two hundred forty-nine thousand, four hundred forty-three".