144913555 has 4 divisors (see below), whose sum is σ = 173896272. Its totient is φ = 115930840.

The previous prime is 144913543. The next prime is 144913577. The reversal of 144913555 is 555319441.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 144913555 - 2⁵ = 144913523 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14491351 + ... + 14491360.

It is an arithmetic number, because the mean of its divisors is an integer number (43474068).

Almost surely, 2^144913555 is an apocalyptic number.

144913555 is a deficient number, since it is larger than the sum of its proper divisors (28982717).

144913555 is an equidigital number, since it uses as much as digits as its factorization.

144913555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28982716.

The product of its digits is 54000, while the sum is 37.

The square root of 144913555 is about 12038.0046103995. The cubic root of 144913555 is about 525.2543650232.

The spelling of 144913555 in words is "one hundred forty-four million, nine hundred thirteen thousand, five hundred fifty-five".