145531135541 has 8 divisors (see below), whose sum is σ = 159104141184. Its totient is φ = 132015280320.

The previous prime is 145531135537. The next prime is 145531135543.

145531135541 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145531135541 - 2² = 145531135537 is a prime.

It is a super-2 number, since 2×145531135541² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 145531135495 and 145531135504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145531135543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14282276 + ... + 14292461.

It is an arithmetic number, because the mean of its divisors is an integer number (19888017648).

Almost surely, 2^145531135541 is an apocalyptic number.

145531135541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145531135541 is a deficient number, since it is larger than the sum of its proper divisors (13573005643).

145531135541 is a wasteful number, since it uses less digits than its factorization.

145531135541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28575211.

The product of its digits is 90000, while the sum is 38.

The spelling of 145531135541 in words is "one hundred forty-five billion, five hundred thirty-one million, one hundred thirty-five thousand, five hundred forty-one".