143434220453 has 4 divisors (see below), whose sum is σ = 143434982028. Its totient is φ = 143433458880.

The previous prime is 143434220437. The next prime is 143434220459. The reversal of 143434220453 is 354022434341.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 354022434341 = 2657 ⋅133241413.

It can be written as a sum of positive squares in 2 ways, for example, as 106655802724 + 36778417729 = 326582^2 + 191777^2 .

It is a cyclic number.

It is not a de Polignac number, because 143434220453 - 2⁴ = 143434220437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143434220459) 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, 131063 + ... + 551403.

It is an arithmetic number, because the mean of its divisors is an integer number (35858745507).

Almost surely, 2^143434220453 is an apocalyptic number.

It is an amenable number.

143434220453 is a deficient number, since it is larger than the sum of its proper divisors (761575).

143434220453 is an equidigital number, since it uses as much as digits as its factorization.

143434220453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761574.

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 143434220453 its reverse (354022434341), we get a palindrome (497456654794).

The spelling of 143434220453 in words is "one hundred forty-three billion, four hundred thirty-four million, two hundred twenty thousand, four hundred fifty-three".