401523 has 8 divisors (see below), whose sum is σ = 566928. Its totient is φ = 251904.

The previous prime is 401519. The next prime is 401537. The reversal of 401523 is 325104.

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

It is not a de Polignac number, because 401523 - 2² = 401519 is a prime.

It is a super-2 number, since 2×401523² = 322441439058, which contains 22 as substring.

401523 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (401593) 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, 3886 + ... + 3987.

It is an arithmetic number, because the mean of its divisors is an integer number (70866).

2⁴⁰¹⁵²³ is an apocalyptic number.

401523 is a deficient number, since it is larger than the sum of its proper divisors (165405).

401523 is a wasteful number, since it uses less digits than its factorization.

401523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7893.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 401523 is about 633.6584253366. The cubic root of 401523 is about 73.7740245392.

Adding to 401523 its reverse (325104), we get a palindrome (726627).

The spelling of 401523 in words is "four hundred one thousand, five hundred twenty-three".