149243800705444 has 9 divisors (see below), whose sum is σ = 261176693992417. Its totient is φ = 74621888136184.

The previous prime is 149243800705379. The next prime is 149243800705463. The reversal of 149243800705444 is 444507008342941.

It is a happy number.

The square root of 149243800705444 is 12216538.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 34175271705444 + 115068529000000 = 5845962^2 + 10727000^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 21378942 + ... + 27487210.

Almost surely, 2^{149243800705444} is an apocalyptic number.

149243800705444 is the 12216538-th square number.

It is an amenable number.

149243800705444 is a deficient number, since it is larger than the sum of its proper divisors (111932893286973).

149243800705444 is an frugal number, since it uses more digits than its factorization.

149243800705444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12216542 (or 6108271 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 55.

The spelling of 149243800705444 in words is "one hundred forty-nine trillion, two hundred forty-three billion, eight hundred million, seven hundred five thousand, four hundred forty-four".