361918471 has 4 divisors (see below), whose sum is σ = 369618912. Its totient is φ = 354218032.

The previous prime is 361918393. The next prime is 361918493. The reversal of 361918471 is 174819163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 174819163 = 29 ⋅6028247.

It is a cyclic number.

It is not a de Polignac number, because 361918471 - 2⁷ = 361918343 is a prime.

It is a super-3 number, since 3×361918471³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361918171) 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, 3850150 + ... + 3850243.

It is an arithmetic number, because the mean of its divisors is an integer number (92404728).

Almost surely, 2^361918471 is an apocalyptic number.

361918471 is a deficient number, since it is larger than the sum of its proper divisors (7700441).

361918471 is an equidigital number, since it uses as much as digits as its factorization.

361918471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7700440.

The product of its digits is 36288, while the sum is 40.

The square root of 361918471 is about 19024.1549352396. The cubic root of 361918471 is about 712.6400888390.

The spelling of 361918471 in words is "three hundred sixty-one million, nine hundred eighteen thousand, four hundred seventy-one".