401254143155 has 8 divisors (see below), whose sum is σ = 488286732384. Its totient is φ = 316482140800.

The previous prime is 401254143137. The next prime is 401254143167. The reversal of 401254143155 is 551341452104.

It is a happy number.

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

It is not a de Polignac number, because 401254143155 - 2⁶ = 401254143091 is a prime.

It is a super-2 number, since 2×401254143155² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 565146326 + ... + 565147035.

It is an arithmetic number, because the mean of its divisors is an integer number (61035841548).

Almost surely, 2^401254143155 is an apocalyptic number.

401254143155 is a deficient number, since it is larger than the sum of its proper divisors (87032589229).

401254143155 is a wasteful number, since it uses less digits than its factorization.

401254143155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130293437.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 401254143155 its reverse (551341452104), we get a palindrome (952595595259).

The spelling of 401254143155 in words is "four hundred one billion, two hundred fifty-four million, one hundred forty-three thousand, one hundred fifty-five".