401452531 has 8 divisors (see below), whose sum is σ = 407788128. Its totient is φ = 395136000.

The previous prime is 401452517. The next prime is 401452589. The reversal of 401452531 is 135254104.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401452531 - 2⁹ = 401452019 is a prime.

It is a super-2 number, since 2×401452531² = 322328269292611922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401452496 and 401452505.

It is not an unprimeable number, because it can be changed into a prime (401452591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41101 + ... + 49921.

It is an arithmetic number, because the mean of its divisors is an integer number (50973516).

Almost surely, 2^401452531 is an apocalyptic number.

401452531 is a deficient number, since it is larger than the sum of its proper divisors (6335597).

401452531 is an equidigital number, since it uses as much as digits as its factorization.

401452531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9533.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 401452531 is about 20036.2803683718. The cubic root of 401452531 is about 737.6970840129.

The spelling of 401452531 in words is "four hundred one million, four hundred fifty-two thousand, five hundred thirty-one".