361420531 has 4 divisors (see below), whose sum is σ = 361491712. Its totient is φ = 361349352.

The previous prime is 361420529. The next prime is 361420541. The reversal of 361420531 is 135024163.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 361420531 - 2¹ = 361420529 is a prime.

It is a super-2 number, since 2×361420531² = 261249600456643922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 361420496 and 361420505.

It is not an unprimeable number, because it can be changed into a prime (361420541) 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, 27336 + ... + 38341.

It is an arithmetic number, because the mean of its divisors is an integer number (90372928).

Almost surely, 2^361420531 is an apocalyptic number.

361420531 is a deficient number, since it is larger than the sum of its proper divisors (71181).

361420531 is an equidigital number, since it uses as much as digits as its factorization.

361420531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71180.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 361420531 is about 19011.0633842508. The cubic root of 361420531 is about 712.3131138451.

Adding to 361420531 its reverse (135024163), we get a palindrome (496444694).

The spelling of 361420531 in words is "three hundred sixty-one million, four hundred twenty thousand, five hundred thirty-one".