143020454 has 16 divisors (see below), whose sum is σ = 217728000. Its totient is φ = 70449480.

The previous prime is 143020433. The next prime is 143020457. The reversal of 143020454 is 454020341.

143020454 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×143020454² = 40909700524732232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143020457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70547 + ... + 72545.

It is an arithmetic number, because the mean of its divisors is an integer number (13608000).

Almost surely, 2^143020454 is an apocalyptic number.

143020454 is a deficient number, since it is larger than the sum of its proper divisors (74707546).

143020454 is a wasteful number, since it uses less digits than its factorization.

143020454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 143020454 is about 11959.1159372255. The cubic root of 143020454 is about 522.9570845144.

Adding to 143020454 its reverse (454020341), we get a palindrome (597040795).

The spelling of 143020454 in words is "one hundred forty-three million, twenty thousand, four hundred fifty-four".