144272457 has 12 divisors (see below), whose sum is σ = 238164160. Its totient is φ = 82441368.

The previous prime is 144272449. The next prime is 144272459. The reversal of 144272457 is 754272441.

It is not a de Polignac number, because 144272457 - 2³ = 144272449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144272459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1144957 + ... + 1145082.

Almost surely, 2^144272457 is an apocalyptic number.

It is an amenable number.

144272457 is a deficient number, since it is larger than the sum of its proper divisors (93891703).

144272457 is a wasteful number, since it uses less digits than its factorization.

144272457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290052 (or 2290049 counting only the distinct ones).

The product of its digits is 62720, while the sum is 36.

The square root of 144272457 is about 12011.3470102233. The cubic root of 144272457 is about 524.4786443395.

The spelling of 144272457 in words is "one hundred forty-four million, two hundred seventy-two thousand, four hundred fifty-seven".