144677897 has 32 divisors (see below), whose sum is σ = 186977280. Its totient is φ = 108864000.

The previous prime is 144677887. The next prime is 144677903. The reversal of 144677897 is 798776441.

It is a de Polignac number, because none of the positive numbers 2^k-144677897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144677887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192272 + ... + 193022.

It is an arithmetic number, because the mean of its divisors is an integer number (5843040).

Almost surely, 2^144677897 is an apocalyptic number.

It is an amenable number.

144677897 is a deficient number, since it is larger than the sum of its proper divisors (42299383).

144677897 is a wasteful number, since it uses less digits than its factorization.

144677897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873.

The product of its digits is 2370816, while the sum is 53.

The square root of 144677897 is about 12028.2125438487. The cubic root of 144677897 is about 524.9694881738.

The spelling of 144677897 in words is "one hundred forty-four million, six hundred seventy-seven thousand, eight hundred ninety-seven".