61251343 has 4 divisors (see below), whose sum is σ = 61267320. Its totient is φ = 61235368.

The previous prime is 61251341. The next prime is 61251347. The reversal of 61251343 is 34315216.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 61251343 - 2¹ = 61251341 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 (61251341) 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, 1596 + ... + 11182.

It is an arithmetic number, because the mean of its divisors is an integer number (15316830).

Almost surely, 2^61251343 is an apocalyptic number.

61251343 is a deficient number, since it is larger than the sum of its proper divisors (15977).

61251343 is an equidigital number, since it uses as much as digits as its factorization.

61251343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15976.

The product of its digits is 2160, while the sum is 25.

The square root of 61251343 is about 7826.3237219016. The cubic root of 61251343 is about 394.1896391835.

Adding to 61251343 its reverse (34315216), we get a palindrome (95566559).

The spelling of 61251343 in words is "sixty-one million, two hundred fifty-one thousand, three hundred forty-three".