144869505121 has 16 divisors (see below), whose sum is σ = 158539993920. Its totient is φ = 131282910720.

The previous prime is 144869505113. The next prime is 144869505139. The reversal of 144869505121 is 121505968441.

It is a cyclic number.

It is not a de Polignac number, because 144869505121 - 2³ = 144869505113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144869535121) 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, 6661161 + ... + 6682873.

It is an arithmetic number, because the mean of its divisors is an integer number (9908749620).

Almost surely, 2^144869505121 is an apocalyptic number.

144869505121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

144869505121 is a deficient number, since it is larger than the sum of its proper divisors (13670488799).

144869505121 is a wasteful number, since it uses less digits than its factorization.

144869505121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23616.

The product of its (nonzero) digits is 345600, while the sum is 46.

The spelling of 144869505121 in words is "one hundred forty-four billion, eight hundred sixty-nine million, five hundred five thousand, one hundred twenty-one".