144458397 has 24 divisors (see below), whose sum is σ = 222252576. Its totient is φ = 93696912.

The previous prime is 144458393. The next prime is 144458399. The reversal of 144458397 is 793854441.

It is not a de Polignac number, because 144458397 - 2² = 144458393 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144458393) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 958 + ... + 17024.

It is an arithmetic number, because the mean of its divisors is an integer number (9260524).

Almost surely, 2^144458397 is an apocalyptic number.

It is an amenable number.

144458397 is a deficient number, since it is larger than the sum of its proper divisors (77794179).

144458397 is an equidigital number, since it uses as much as digits as its factorization.

144458397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16119 (or 16107 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 144458397 is about 12019.0846989278. The cubic root of 144458397 is about 524.7038656453.

The spelling of 144458397 in words is "one hundred forty-four million, four hundred fifty-eight thousand, three hundred ninety-seven".