144154469 has 2 divisors, whose sum is σ = 144154470. Its totient is φ = 144154468.

The previous prime is 144154427. The next prime is 144154471. The reversal of 144154469 is 964451441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88830625 + 55323844 = 9425^2 + 7438^2 .

It is a cyclic number.

It is not a de Polignac number, because 144154469 - 2²⁴ = 127377253 is a prime.

It is a super-2 number, since 2×144154469² = 41561021865343922, which contains 22 as substring.

Together with 144154471, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144154489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72077234 + 72077235.

It is an arithmetic number, because the mean of its divisors is an integer number (72077235).

Almost surely, 2^144154469 is an apocalyptic number.

It is an amenable number.

144154469 is a deficient number, since it is larger than the sum of its proper divisors (1).

144154469 is an equidigital number, since it uses as much as digits as its factorization.

144154469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 38.

The square root of 144154469 is about 12006.4344832261. The cubic root of 144154469 is about 524.3356300627.

The spelling of 144154469 in words is "one hundred forty-four million, one hundred fifty-four thousand, four hundred sixty-nine".