452143431 has 16 divisors (see below), whose sum is σ = 684096000. Its totient is φ = 295014744.

The previous prime is 452143423. The next prime is 452143451. The reversal of 452143431 is 134341254.

It is a happy number.

It is not a de Polignac number, because 452143431 - 2³ = 452143423 is a prime.

It is a super-2 number, since 2×452143431² = 408867364392903522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 452143395 and 452143404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452143451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176881 + ... + 179418.

It is an arithmetic number, because the mean of its divisors is an integer number (42756000).

Almost surely, 2^452143431 is an apocalyptic number.

452143431 is a deficient number, since it is larger than the sum of its proper divisors (231952569).

452143431 is a wasteful number, since it uses less digits than its factorization.

452143431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356355 (or 356349 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 452143431 is about 21263.6645712822. The cubic root of 452143431 is about 767.5241956389.

Adding to 452143431 its reverse (134341254), we get a palindrome (586484685).

The spelling of 452143431 in words is "four hundred fifty-two million, one hundred forty-three thousand, four hundred thirty-one".