144145511 has 4 divisors (see below), whose sum is σ = 144187272. Its totient is φ = 144103752.

The previous prime is 144145487. The next prime is 144145523. The reversal of 144145511 is 115541441.

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

It is a cyclic number.

It is not a de Polignac number, because 144145511 - 2⁶ = 144145447 is a prime.

It is a super-2 number, since 2×144145511² = 41555856682902242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144145541) 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, 15185 + ... + 22778.

It is an arithmetic number, because the mean of its divisors is an integer number (36046818).

Almost surely, 2^144145511 is an apocalyptic number.

144145511 is a deficient number, since it is larger than the sum of its proper divisors (41761).

144145511 is an equidigital number, since it uses as much as digits as its factorization.

144145511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41760.

The product of its digits is 1600, while the sum is 26.

The square root of 144145511 is about 12006.0614274624. The cubic root of 144145511 is about 524.3247688064.

Adding to 144145511 its reverse (115541441), we get a palindrome (259686952).

The spelling of 144145511 in words is "one hundred forty-four million, one hundred forty-five thousand, five hundred eleven".