401516143 has 16 divisors (see below), whose sum is σ = 469172800. Its totient is φ = 343471968.

The previous prime is 401516117. The next prime is 401516173. The reversal of 401516143 is 341615104.

It is a de Polignac number, because none of the positive numbers 2^k-401516143 is a prime.

It is a super-2 number, since 2×401516143² = 322430426179192898, 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 (401516173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250621 + ... + 252217.

It is an arithmetic number, because the mean of its divisors is an integer number (29323300).

Almost surely, 2^401516143 is an apocalyptic number.

401516143 is a deficient number, since it is larger than the sum of its proper divisors (67656657).

401516143 is an equidigital number, since it uses as much as digits as its factorization.

401516143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351 (or 2337 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 401516143 is about 20037.8677258834. The cubic root of 401516143 is about 737.7360457871.

The spelling of 401516143 in words is "four hundred one million, five hundred sixteen thousand, one hundred forty-three".