144541513455551 has 4 divisors (see below), whose sum is σ = 145944829120272. Its totient is φ = 143138197790832.

The previous prime is 144541513455509. The next prime is 144541513455587. The reversal of 144541513455551 is 155554315145441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144541513455551 is a prime.

It is a super-2 number, since 2×144541513455551² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144541513455493 and 144541513455502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144541513455751) 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, 701657832206 + ... + 701657832411.

It is an arithmetic number, because the mean of its divisors is an integer number (36486207280068).

Almost surely, 2^{144541513455551} is an apocalyptic number.

144541513455551 is a deficient number, since it is larger than the sum of its proper divisors (1403315664721).

144541513455551 is a wasteful number, since it uses less digits than its factorization.

144541513455551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403315664720.

The product of its digits is 12000000, while the sum is 53.

The spelling of 144541513455551 in words is "one hundred forty-four trillion, five hundred forty-one billion, five hundred thirteen million, four hundred fifty-five thousand, five hundred fifty-one".