144618457 has 8 divisors (see below), whose sum is σ = 151744320. Its totient is φ = 137562480.

The previous prime is 144618437. The next prime is 144618469. The reversal of 144618457 is 754816441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144618457 - 2¹⁵ = 144585689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144618437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13207 + ... + 21532.

It is an arithmetic number, because the mean of its divisors is an integer number (18968040).

Almost surely, 2^144618457 is an apocalyptic number.

It is an amenable number.

144618457 is a deficient number, since it is larger than the sum of its proper divisors (7125863).

144618457 is a wasteful number, since it uses less digits than its factorization.

144618457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34943.

The product of its digits is 107520, while the sum is 40.

The square root of 144618457 is about 12025.7414324440. The cubic root of 144618457 is about 524.8975848600.

The spelling of 144618457 in words is "one hundred forty-four million, six hundred eighteen thousand, four hundred fifty-seven".