361421 has 2 divisors, whose sum is σ = 361422. Its totient is φ = 361420.

The previous prime is 361411. The next prime is 361433. The reversal of 361421 is 124163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 354025 + 7396 = 595^2 + 86^2 .

It is a cyclic number.

It is not a de Polignac number, because 361421 - 2⁶ = 361357 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 361421.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 361421.

It is not a weakly prime, because it can be changed into another prime (361411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180710 + 180711.

It is an arithmetic number, because the mean of its divisors is an integer number (180711).

2³⁶¹⁴²¹ is an apocalyptic number.

It is an amenable number.

361421 is a deficient number, since it is larger than the sum of its proper divisors (1).

361421 is an equidigital number, since it uses as much as digits as its factorization.

361421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 17.

The square root of 361421 is about 601.1830004250. The cubic root of 361421 is about 71.2313421958.

Adding to 361421 its reverse (124163), we get a palindrome (485584).

The spelling of 361421 in words is "three hundred sixty-one thousand, four hundred twenty-one".