361445 has 16 divisors (see below), whose sum is σ = 518400. Its totient is φ = 236544.

The previous prime is 361441. The next prime is 361447. The reversal of 361445 is 544163.

It is a happy number.

It is not a de Polignac number, because 361445 - 2² = 361441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 361445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 581 + ... + 1029.

It is an arithmetic number, because the mean of its divisors is an integer number (32400).

2³⁶¹⁴⁴⁵ is an apocalyptic number.

361445 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

361445 is a deficient number, since it is larger than the sum of its proper divisors (156955).

361445 is a wasteful number, since it uses less digits than its factorization.

361445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484.

The product of its digits is 1440, while the sum is 23.

The square root of 361445 is about 601.2029607379. The cubic root of 361445 is about 71.2329188560.

The spelling of 361445 in words is "three hundred sixty-one thousand, four hundred forty-five".