144455397 has 4 divisors (see below), whose sum is σ = 192607200. Its totient is φ = 96303596.

The previous prime is 144455357. The next prime is 144455413. The reversal of 144455397 is 793554441.

144455397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 144455397 - 2¹² = 144451301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144455317) 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, 24075897 + ... + 24075902.

It is an arithmetic number, because the mean of its divisors is an integer number (48151800).

Almost surely, 2^144455397 is an apocalyptic number.

It is an amenable number.

144455397 is a deficient number, since it is larger than the sum of its proper divisors (48151803).

144455397 is an equidigital number, since it uses as much as digits as its factorization.

144455397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48151802.

The product of its digits is 302400, while the sum is 42.

The square root of 144455397 is about 12018.9598967631. The cubic root of 144455397 is about 524.7002334058.

The spelling of 144455397 in words is "one hundred forty-four million, four hundred fifty-five thousand, three hundred ninety-seven".