401512013 has 4 divisors (see below), whose sum is σ = 458870880. Its totient is φ = 344153148.

The previous prime is 401511997. The next prime is 401512021. The reversal of 401512013 is 310215104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 401512013 - 2⁴ = 401511997 is a prime.

It is a super-2 number, since 2×401512013² = 322423793166624338, 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 = 401511982 and 401512000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401542013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28679423 + ... + 28679436.

It is an arithmetic number, because the mean of its divisors is an integer number (114717720).

Almost surely, 2^401512013 is an apocalyptic number.

It is an amenable number.

401512013 is a deficient number, since it is larger than the sum of its proper divisors (57358867).

401512013 is an equidigital number, since it uses as much as digits as its factorization.

401512013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57358866.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 401512013 is about 20037.7646707411. The cubic root of 401512013 is about 737.7335163244.

Adding to 401512013 its reverse (310215104), we get a palindrome (711727117).

The spelling of 401512013 in words is "four hundred one million, five hundred twelve thousand, thirteen".