144949057 has 4 divisors (see below), whose sum is σ = 158126256. Its totient is φ = 131771860.

The previous prime is 144949033. The next prime is 144949093. The reversal of 144949057 is 750949441.

144949057 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 750949441 = 11 ⋅68268131.

It is not a de Polignac number, because 144949057 - 2¹¹ = 144947009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144949957) 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, 6588583 + ... + 6588604.

It is an arithmetic number, because the mean of its divisors is an integer number (39531564).

Almost surely, 2^144949057 is an apocalyptic number.

It is an amenable number.

144949057 is a deficient number, since it is larger than the sum of its proper divisors (13177199).

144949057 is a wasteful number, since it uses less digits than its factorization.

144949057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13177198.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 144949057 is about 12039.4791000275. The cubic root of 144949057 is about 525.2972550939.

The spelling of 144949057 in words is "one hundred forty-four million, nine hundred forty-nine thousand, fifty-seven".