144115469 has 4 divisors (see below), whose sum is σ = 144459840. Its totient is φ = 143771100.

The previous prime is 144115463. The next prime is 144115483. The reversal of 144115469 is 964511441.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 144115469 - 2⁴ = 144115453 is a prime.

It is a super-2 number, since 2×144115469² = 41538536810179922, 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 (144115463) 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, 171557 + ... + 172394.

It is an arithmetic number, because the mean of its divisors is an integer number (36114960).

Almost surely, 2^144115469 is an apocalyptic number.

It is an amenable number.

144115469 is a deficient number, since it is larger than the sum of its proper divisors (344371).

144115469 is an equidigital number, since it uses as much as digits as its factorization.

144115469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344370.

The product of its digits is 17280, while the sum is 35.

The square root of 144115469 is about 12004.8102442313. The cubic root of 144115469 is about 524.2883406651.

The spelling of 144115469 in words is "one hundred forty-four million, one hundred fifteen thousand, four hundred sixty-nine".