61445343 has 8 divisors (see below), whose sum is σ = 82190128. Its totient is φ = 40832064.

The previous prime is 61445339. The next prime is 61445353. The reversal of 61445343 is 34354416.

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

It is not a de Polignac number, because 61445343 - 2² = 61445339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61445343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61445303) 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, 31780 + ... + 33657.

It is an arithmetic number, because the mean of its divisors is an integer number (10273766).

Almost surely, 2^61445343 is an apocalyptic number.

61445343 is a deficient number, since it is larger than the sum of its proper divisors (20744785).

61445343 is a wasteful number, since it uses less digits than its factorization.

61445343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65753.

The product of its digits is 17280, while the sum is 30.

The square root of 61445343 is about 7838.7079930305. The cubic root of 61445343 is about 394.6053699043.

Adding to 61445343 its reverse (34354416), we get a palindrome (95799759).

The spelling of 61445343 in words is "sixty-one million, four hundred forty-five thousand, three hundred forty-three".