143513455 has 4 divisors (see below), whose sum is σ = 172216152. Its totient is φ = 114810760.

The previous prime is 143513443. The next prime is 143513459. The reversal of 143513455 is 554315341.

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

It is not a de Polignac number, because 143513455 - 2¹⁹ = 142989167 is a prime.

It is a super-2 number, since 2×143513455² = 41192223532074050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143513459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14351341 + ... + 14351350.

It is an arithmetic number, because the mean of its divisors is an integer number (43054038).

Almost surely, 2^143513455 is an apocalyptic number.

143513455 is a deficient number, since it is larger than the sum of its proper divisors (28702697).

143513455 is an equidigital number, since it uses as much as digits as its factorization.

143513455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28702696.

The product of its digits is 18000, while the sum is 31.

The square root of 143513455 is about 11979.7101383965. The cubic root of 143513455 is about 523.5572846616.

Adding to 143513455 its reverse (554315341), we get a palindrome (697828796).

The spelling of 143513455 in words is "one hundred forty-three million, five hundred thirteen thousand, four hundred fifty-five".