452143531 has 24 divisors (see below), whose sum is σ = 546349104. Its totient is φ = 372798720.

The previous prime is 452143519. The next prime is 452143541. The reversal of 452143531 is 135341254.

It is not a de Polignac number, because 452143531 - 2¹³ = 452135339 is a prime.

It is a super-2 number, since 2×452143531² = 408867545250295922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 452143531.

It is not an unprimeable number, because it can be changed into a prime (452143501) 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 23 ways as a sum of consecutive naturals, for example, 145116 + ... + 148198.

It is an arithmetic number, because the mean of its divisors is an integer number (22764546).

Almost surely, 2^452143531 is an apocalyptic number.

452143531 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

452143531 is a deficient number, since it is larger than the sum of its proper divisors (94205573).

452143531 is a wasteful number, since it uses less digits than its factorization.

452143531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3211 (or 3204 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 452143531 is about 21263.6669227111. Note that the first 3 decimals coincide. The cubic root of 452143531 is about 767.5242522231.

Adding to 452143531 its reverse (135341254), we get a palindrome (587484785).

The spelling of 452143531 in words is "four hundred fifty-two million, one hundred forty-three thousand, five hundred thirty-one".