401659061 has 4 divisors (see below), whose sum is σ = 405412992. Its totient is φ = 397905132.

The previous prime is 401659043. The next prime is 401659073. The reversal of 401659061 is 160956104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 401659061 - 2⁶ = 401658997 is a prime.

It is a super-2 number, since 2×401659061² = 322660002566803442, 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 (401659261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1876805 + ... + 1877018.

It is an arithmetic number, because the mean of its divisors is an integer number (101353248).

Almost surely, 2^401659061 is an apocalyptic number.

It is an amenable number.

401659061 is a deficient number, since it is larger than the sum of its proper divisors (3753931).

401659061 is a wasteful number, since it uses less digits than its factorization.

401659061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3753930.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 401659061 is about 20041.4336064065. The cubic root of 401659061 is about 737.8235667620.

The spelling of 401659061 in words is "four hundred one million, six hundred fifty-nine thousand, sixty-one".