144468457 has 16 divisors (see below), whose sum is σ = 176256000. Its totient is φ = 115652880.

The previous prime is 144468391. The next prime is 144468473. The reversal of 144468457 is 754864441.

It is a happy number.

144468457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144468457 - 2¹¹ = 144466409 is a prime.

It is a super-2 number, since 2×144468457² = 41742270135921698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144468487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1794 + ... + 17092.

It is an arithmetic number, because the mean of its divisors is an integer number (11016000).

Almost surely, 2^144468457 is an apocalyptic number.

It is an amenable number.

144468457 is a deficient number, since it is larger than the sum of its proper divisors (31787543).

144468457 is a wasteful number, since it uses less digits than its factorization.

144468457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15396.

The product of its digits is 430080, while the sum is 43.

The square root of 144468457 is about 12019.5031927281. The cubic root of 144468457 is about 524.7160453881.

The spelling of 144468457 in words is "one hundred forty-four million, four hundred sixty-eight thousand, four hundred fifty-seven".