401523005 has 16 divisors (see below), whose sum is σ = 535632384. Its totient is φ = 286943040.

The previous prime is 401522999. The next prime is 401523011. The reversal of 401523005 is 500325104.

It is an interprime number because it is at equal distance from previous prime (401522999) and next prime (401523011).

It is not a de Polignac number, because 401523005 - 2⁸ = 401522749 is a prime.

It is a super-2 number, since 2×401523005² = 322441447088460050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97619 + ... + 101648.

It is an arithmetic number, because the mean of its divisors is an integer number (33477024).

Almost surely, 2^401523005 is an apocalyptic number.

It is an amenable number.

401523005 is a deficient number, since it is larger than the sum of its proper divisors (134109379).

401523005 is a wasteful number, since it uses less digits than its factorization.

401523005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199316.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 401523005 is about 20038.0389509553. The cubic root of 401523005 is about 737.7402484541.

Adding to 401523005 its reverse (500325104), we get a palindrome (901848109).

The spelling of 401523005 in words is "four hundred one million, five hundred twenty-three thousand, five".