401452161 has 32 divisors (see below), whose sum is σ = 620960256. Its totient is φ = 228000000.

The previous prime is 401452153. The next prime is 401452213. The reversal of 401452161 is 161254104.

It is a happy number.

It is not a de Polignac number, because 401452161 - 2³ = 401452153 is a prime.

It is a super-2 number, since 2×401452161² = 322327675143139842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401452111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139386 + ... + 142236.

It is an arithmetic number, because the mean of its divisors is an integer number (19405008).

Almost surely, 2^401452161 is an apocalyptic number.

It is an amenable number.

401452161 is a deficient number, since it is larger than the sum of its proper divisors (219508095).

401452161 is a wasteful number, since it uses less digits than its factorization.

401452161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 401452161 is about 20036.2711351189. The cubic root of 401452161 is about 737.6968573792.

The spelling of 401452161 in words is "four hundred one million, four hundred fifty-two thousand, one hundred sixty-one".