401372143 has 4 divisors (see below), whose sum is σ = 407362840. Its totient is φ = 395381448.

The previous prime is 401372141. The next prime is 401372173. The reversal of 401372143 is 341273104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 401372143 - 2¹ = 401372141 is a prime.

It is a super-2 number, since 2×401372143² = 322199194352824898, 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 (401372141) 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, 2995248 + ... + 2995381.

It is an arithmetic number, because the mean of its divisors is an integer number (101840710).

Almost surely, 2^401372143 is an apocalyptic number.

401372143 is a deficient number, since it is larger than the sum of its proper divisors (5990697).

401372143 is an equidigital number, since it uses as much as digits as its factorization.

401372143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5990696.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 401372143 is about 20034.2742069684. The cubic root of 401372143 is about 737.6478412031.

The spelling of 401372143 in words is "four hundred one million, three hundred seventy-two thousand, one hundred forty-three".