226149439973 has 2 divisors, whose sum is σ = 226149439974. Its totient is φ = 226149439972.

The previous prime is 226149439963. The next prime is 226149440003. The reversal of 226149439973 is 379934941622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212158808449 + 13990631524 = 460607^2 + 118282^2 .

It is a cyclic number.

It is not a de Polignac number, because 226149439973 - 2¹⁸ = 226149177829 is a prime.

It is a super-2 number, since 2×226149439973² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226149439903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113074719986 + 113074719987.

It is an arithmetic number, because the mean of its divisors is an integer number (113074719987).

Almost surely, 2^226149439973 is an apocalyptic number.

It is an amenable number.

226149439973 is a deficient number, since it is larger than the sum of its proper divisors (1).

226149439973 is an equidigital number, since it uses as much as digits as its factorization.

226149439973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17635968, while the sum is 59.

The spelling of 226149439973 in words is "two hundred twenty-six billion, one hundred forty-nine million, four hundred thirty-nine thousand, nine hundred seventy-three".