144302545521 has 32 divisors (see below), whose sum is σ = 219043319040. Its totient is φ = 93834921600.

The previous prime is 144302545481. The next prime is 144302545559. The reversal of 144302545521 is 125545203441.

144302545521 is a `hidden beast` number, since 1 + 44 + 30 + 25 + 45 + 521 = 666.

It is not a de Polignac number, because 144302545521 - 2²⁵ = 144268991089 is a prime.

It is a super-2 number, since 2×144302545521² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144302545571) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6390511 + ... + 6413051.

It is an arithmetic number, because the mean of its divisors is an integer number (6845103720).

Almost surely, 2^144302545521 is an apocalyptic number.

It is an amenable number.

144302545521 is a deficient number, since it is larger than the sum of its proper divisors (74740773519).

144302545521 is a wasteful number, since it uses less digits than its factorization.

144302545521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28374 (or 28368 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 144302545521 its reverse (125545203441), we get a palindrome (269847748962).

The spelling of 144302545521 in words is "one hundred forty-four billion, three hundred two million, five hundred forty-five thousand, five hundred twenty-one".