143540573513 has 4 divisors (see below), whose sum is σ = 151095340560. Its totient is φ = 135985806468.

The previous prime is 143540573507. The next prime is 143540573587. The reversal of 143540573513 is 315375045341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 143540573513 - 2²² = 143536379209 is a prime.

It is a super-2 number, since 2×143540573513² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143540575513) 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, 3777383495 + ... + 3777383532.

It is an arithmetic number, because the mean of its divisors is an integer number (37773835140).

Almost surely, 2^143540573513 is an apocalyptic number.

It is an amenable number.

143540573513 is a deficient number, since it is larger than the sum of its proper divisors (7554767047).

143540573513 is an equidigital number, since it uses as much as digits as its factorization.

143540573513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7554767046.

The product of its (nonzero) digits is 378000, while the sum is 41.

The spelling of 143540573513 in words is "one hundred forty-three billion, five hundred forty million, five hundred seventy-three thousand, five hundred thirteen".