144134232021 has 12 divisors (see below), whose sum is σ = 224208805548. Its totient is φ = 88697988864.

The previous prime is 144134232013. The next prime is 144134232031. The reversal of 144134232021 is 120232431441.

144134232021 is a `hidden beast` number, since 1 + 4 + 413 + 42 + 3 + 202 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13967694225 + 130166537796 = 118185^2 + 360786^2 .

It is not a de Polignac number, because 144134232021 - 2³ = 144134232013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144134232031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 615958140 + ... + 615958373.

It is an arithmetic number, because the mean of its divisors is an integer number (18684067129).

Almost surely, 2^144134232021 is an apocalyptic number.

It is an amenable number.

144134232021 is a deficient number, since it is larger than the sum of its proper divisors (80074573527).

144134232021 is a wasteful number, since it uses less digits than its factorization.

144134232021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231916532 (or 1231916529 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 144134232021 its reverse (120232431441), we get a palindrome (264366663462).

The spelling of 144134232021 in words is "one hundred forty-four billion, one hundred thirty-four million, two hundred thirty-two thousand, twenty-one".