401455543 has 8 divisors (see below), whose sum is σ = 407516816. Its totient is φ = 395409600.

The previous prime is 401455519. The next prime is 401455567. The reversal of 401455543 is 345554104.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (401455519) and next prime (401455567).

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 401455543 - 2⁹ = 401455031 is a prime.

It is a super-2 number, since 2×401455543² = 322333106010849698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401455573) 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, 55813 + ... + 62593.

It is an arithmetic number, because the mean of its divisors is an integer number (50939602).

Almost surely, 2^401455543 is an apocalyptic number.

401455543 is a deficient number, since it is larger than the sum of its proper divisors (6061273).

401455543 is an equidigital number, since it uses as much as digits as its factorization.

401455543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7665.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 401455543 is about 20036.3555318825. The cubic root of 401455543 is about 737.6989289285.

The spelling of 401455543 in words is "four hundred one million, four hundred fifty-five thousand, five hundred forty-three".