401515223 has 8 divisors (see below), whose sum is σ = 406879200. Its totient is φ = 396170368.

The previous prime is 401515211. The next prime is 401515241. The reversal of 401515223 is 322515104.

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 401515223 - 2⁴ = 401515207 is a prime.

It is a super-2 number, since 2×401515223² = 322428948601479458, 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 (401515243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40283 + ... + 49251.

It is an arithmetic number, because the mean of its divisors is an integer number (50859900).

Almost surely, 2^401515223 is an apocalyptic number.

401515223 is a deficient number, since it is larger than the sum of its proper divisors (5363977).

401515223 is an equidigital number, since it uses as much as digits as its factorization.

401515223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9561.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 401515223 is about 20037.8447693358. The cubic root of 401515223 is about 737.7354823247.

The spelling of 401515223 in words is "four hundred one million, five hundred fifteen thousand, two hundred twenty-three".