144697093905 has 64 divisors (see below), whose sum is σ = 285197391360. Its totient is φ = 61004261376.

The previous prime is 144697093901. The next prime is 144697093907. The reversal of 144697093905 is 509390796441.

It is not a de Polignac number, because 144697093905 - 2² = 144697093901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144697093901) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1494139 + ... + 1588031.

It is an arithmetic number, because the mean of its divisors is an integer number (4456209240).

Almost surely, 2^144697093905 is an apocalyptic number.

144697093905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144697093905 is a deficient number, since it is larger than the sum of its proper divisors (140500297455).

144697093905 is a wasteful number, since it uses less digits than its factorization.

144697093905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95050.

The product of its (nonzero) digits is 7348320, while the sum is 57.

The spelling of 144697093905 in words is "one hundred forty-four billion, six hundred ninety-seven million, ninety-three thousand, nine hundred five".