401361565 has 8 divisors (see below), whose sum is σ = 525418848. Its totient is φ = 291899280.

The previous prime is 401361559. The next prime is 401361617. The reversal of 401361565 is 565163104.

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

It is not a de Polignac number, because 401361565 - 2⁷ = 401361437 is a prime.

It is a super-2 number, since 2×401361565² = 322182211718498450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3648687 + ... + 3648796.

It is an arithmetic number, because the mean of its divisors is an integer number (65677356).

Almost surely, 2^401361565 is an apocalyptic number.

It is an amenable number.

401361565 is a deficient number, since it is larger than the sum of its proper divisors (124057283).

401361565 is a wasteful number, since it uses less digits than its factorization.

401361565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7297499.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 401361565 is about 20034.0102076444. The cubic root of 401361565 is about 737.6413610096.

The spelling of 401361565 in words is "four hundred one million, three hundred sixty-one thousand, five hundred sixty-five".