224781139961 has 4 divisors (see below), whose sum is σ = 256892731392. Its totient is φ = 192669548532.

The previous prime is 224781139951. The next prime is 224781139963. The reversal of 224781139961 is 169931187422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 224781139961 - 2¹⁴ = 224781123577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224781139963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16055795705 + ... + 16055795718.

It is an arithmetic number, because the mean of its divisors is an integer number (64223182848).

Almost surely, 2^224781139961 is an apocalyptic number.

It is an amenable number.

224781139961 is a deficient number, since it is larger than the sum of its proper divisors (32111591431).

224781139961 is an equidigital number, since it uses as much as digits as its factorization.

224781139961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32111591430.

The product of its digits is 1306368, while the sum is 53.

The spelling of 224781139961 in words is "two hundred twenty-four billion, seven hundred eighty-one million, one hundred thirty-nine thousand, nine hundred sixty-one".