401123144 has 8 divisors (see below), whose sum is σ = 752105910. Its totient is φ = 200561568.

The previous prime is 401123119. The next prime is 401123159. The reversal of 401123144 is 441321104.

It can be written as a sum of positive squares in only one way, i.e., 348270244 + 52852900 = 18662^2 + 7270^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25070189 + ... + 25070204.

Almost surely, 2^401123144 is an apocalyptic number.

It is an amenable number.

401123144 is a deficient number, since it is larger than the sum of its proper divisors (350982766).

401123144 is a wasteful number, since it uses less digits than its factorization.

401123144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50140399 (or 50140395 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 401123144 is about 20028.0589174288. The cubic root of 401123144 is about 737.4952715966.

Adding to 401123144 its reverse (441321104), we get a palindrome (842444248).

The spelling of 401123144 in words is "four hundred one million, one hundred twenty-three thousand, one hundred forty-four".