144345454 has 16 divisors (see below), whose sum is σ = 236456496. Its totient is φ = 65540800.

The previous prime is 144345437. The next prime is 144345457. The reversal of 144345454 is 454543441.

It is a super-2 number, since 2×144345454² = 41671220180932232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144345457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21144 + ... + 27124.

It is an arithmetic number, because the mean of its divisors is an integer number (14778531).

Almost surely, 2^144345454 is an apocalyptic number.

144345454 is a deficient number, since it is larger than the sum of its proper divisors (92111042).

144345454 is a wasteful number, since it uses less digits than its factorization.

144345454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7091.

The product of its digits is 76800, while the sum is 34.

The square root of 144345454 is about 12014.3852943045. The cubic root of 144345454 is about 524.5670855966.

Adding to 144345454 its reverse (454543441), we get a palindrome (598888895).

The spelling of 144345454 in words is "one hundred forty-four million, three hundred forty-five thousand, four hundred fifty-four".