144606497187 has 16 divisors (see below), whose sum is σ = 203138274560. Its totient is φ = 91248615072.

The previous prime is 144606497179. The next prime is 144606497209. The reversal of 144606497187 is 781794606441.

It is a happy number.

It is not a de Polignac number, because 144606497187 - 2³ = 144606497179 is a prime.

It is a super-2 number, since 2×144606497187² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144606497137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1071943 + ... + 1199280.

It is an arithmetic number, because the mean of its divisors is an integer number (12696142160).

Almost surely, 2^144606497187 is an apocalyptic number.

144606497187 is a deficient number, since it is larger than the sum of its proper divisors (58531777373).

144606497187 is a wasteful number, since it uses less digits than its factorization.

144606497187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272362.

The product of its (nonzero) digits is 8128512, while the sum is 57.

The spelling of 144606497187 in words is "one hundred forty-four billion, six hundred six million, four hundred ninety-seven thousand, one hundred eighty-seven".