144548921415497 has 4 divisors (see below), whose sum is σ = 146706368003856. Its totient is φ = 142391474827140.

The previous prime is 144548921415463. The next prime is 144548921415499. The reversal of 144548921415497 is 794514129845441.

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 144548921415497 - 2⁴⁶ = 74180177237833 is a prime.

It is a super-2 number, since 2×144548921415497² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144548921415499) 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, 1078723294079 + ... + 1078723294212.

It is an arithmetic number, because the mean of its divisors is an integer number (36676592000964).

Almost surely, 2^{144548921415497} is an apocalyptic number.

It is an amenable number.

144548921415497 is a deficient number, since it is larger than the sum of its proper divisors (2157446588359).

144548921415497 is an equidigital number, since it uses as much as digits as its factorization.

144548921415497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157446588358.

The product of its digits is 232243200, while the sum is 68.

The spelling of 144548921415497 in words is "one hundred forty-four trillion, five hundred forty-eight billion, nine hundred twenty-one million, four hundred fifteen thousand, four hundred ninety-seven".