146938223449 has 4 divisors (see below), whose sum is σ = 148010765364. Its totient is φ = 145865681536.

The previous prime is 146938223447. The next prime is 146938223459. The reversal of 146938223449 is 944322839641.

146938223449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 944322839641 = 23 ⋅41057514767.

It can be written as a sum of positive squares in 2 ways, for example, as 119632974400 + 27305249049 = 345880^2 + 165243^2 .

It is a cyclic number.

It is not a de Polignac number, because 146938223449 - 2¹ = 146938223447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 146938223449.

It is not an unprimeable number, because it can be changed into a prime (146938223447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536270752 + ... + 536271025.

It is an arithmetic number, because the mean of its divisors is an integer number (37002691341).

Almost surely, 2^146938223449 is an apocalyptic number.

It is an amenable number.

146938223449 is a deficient number, since it is larger than the sum of its proper divisors (1072541915).

146938223449 is a wasteful number, since it uses less digits than its factorization.

146938223449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072541914.

The product of its digits is 8957952, while the sum is 55.

The spelling of 146938223449 in words is "one hundred forty-six billion, nine hundred thirty-eight million, two hundred twenty-three thousand, four hundred forty-nine".