401165461 has 4 divisors (see below), whose sum is σ = 401208300. Its totient is φ = 401122624.

The previous prime is 401165459. The next prime is 401165483. The reversal of 401165461 is 164561104.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 54982225 + 346183236 = 7415^2 + 18606^2 .

It is a cyclic number.

It is not a de Polignac number, because 401165461 - 2¹ = 401165459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401165491) 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, 676 + ... + 28333.

It is an arithmetic number, because the mean of its divisors is an integer number (100302075).

Almost surely, 2^401165461 is an apocalyptic number.

It is an amenable number.

401165461 is a deficient number, since it is larger than the sum of its proper divisors (42839).

401165461 is a wasteful number, since it uses less digits than its factorization.

401165461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42838.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 401165461 is about 20029.1153324354. The cubic root of 401165461 is about 737.5212050209.

The spelling of 401165461 in words is "four hundred one million, one hundred sixty-five thousand, four hundred sixty-one".