61226743 has 4 divisors (see below), whose sum is σ = 63338040. Its totient is φ = 59115448.

The previous prime is 61226731. The next prime is 61226747. The reversal of 61226743 is 34762216.

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-61226743 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61226747) 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, 1055605 + ... + 1055662.

It is an arithmetic number, because the mean of its divisors is an integer number (15834510).

Almost surely, 2^61226743 is an apocalyptic number.

61226743 is a deficient number, since it is larger than the sum of its proper divisors (2111297).

61226743 is a wasteful number, since it uses less digits than its factorization.

61226743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111296.

The product of its digits is 12096, while the sum is 31.

The square root of 61226743 is about 7824.7519449501. The cubic root of 61226743 is about 394.1368601307.

Adding to 61226743 its reverse (34762216), we get a palindrome (95988959).

The spelling of 61226743 in words is "sixty-one million, two hundred twenty-six thousand, seven hundred forty-three".