61351343 has 4 divisors (see below), whose sum is σ = 61369800. Its totient is φ = 61332888.

The previous prime is 61351333. The next prime is 61351357. The reversal of 61351343 is 34315316.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61351343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61351333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2705 + ... + 11402.

It is an arithmetic number, because the mean of its divisors is an integer number (15342450).

Almost surely, 2^61351343 is an apocalyptic number.

61351343 is a deficient number, since it is larger than the sum of its proper divisors (18457).

61351343 is a wasteful number, since it uses less digits than its factorization.

61351343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18456.

The product of its digits is 3240, while the sum is 26.

The square root of 61351343 is about 7832.7098120638. The cubic root of 61351343 is about 394.4040428162.

Adding to 61351343 its reverse (34315316), we get a palindrome (95666659).

The spelling of 61351343 in words is "sixty-one million, three hundred fifty-one thousand, three hundred forty-three".