361621105 has 8 divisors (see below), whose sum is σ = 440057664. Its totient is φ = 285222000.

The previous prime is 361621081. The next prime is 361621109. The reversal of 361621105 is 501126163.

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

It is not a de Polignac number, because 361621105 - 2¹³ = 361612913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 361621105.

It is not an unprimeable number, because it can be changed into a prime (361621109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508971 + ... + 509680.

It is an arithmetic number, because the mean of its divisors is an integer number (55007208).

Almost surely, 2^361621105 is an apocalyptic number.

It is an amenable number.

361621105 is a deficient number, since it is larger than the sum of its proper divisors (78436559).

361621105 is a wasteful number, since it uses less digits than its factorization.

361621105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018727.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 361621105 is about 19016.3378440750. The cubic root of 361621105 is about 712.4448579466. Note that the first 3 decimals are identical.

Adding to 361621105 its reverse (501126163), we get a palindrome (862747268).

The spelling of 361621105 in words is "three hundred sixty-one million, six hundred twenty-one thousand, one hundred five".