361500421 has 4 divisors (see below), whose sum is σ = 361565344. Its totient is φ = 361435500.

The previous prime is 361500413. The next prime is 361500449. The reversal of 361500421 is 124005163.

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 361500421 - 2³ = 361500413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 361500392 and 361500401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361500401) 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, 23235 + ... + 35536.

It is an arithmetic number, because the mean of its divisors is an integer number (90391336).

Almost surely, 2^361500421 is an apocalyptic number.

It is an amenable number.

361500421 is a deficient number, since it is larger than the sum of its proper divisors (64923).

361500421 is an equidigital number, since it uses as much as digits as its factorization.

361500421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64922.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 361500421 is about 19013.1644131112. The cubic root of 361500421 is about 712.3655942636.

Adding to 361500421 its reverse (124005163), we get a palindrome (485505584).

The spelling of 361500421 in words is "three hundred sixty-one million, five hundred thousand, four hundred twenty-one".