214745 has 8 divisors (see below), whose sum is σ = 266760. Its totient is φ = 165760.

The previous prime is 214741. The next prime is 214759. The reversal of 214745 is 547412.

214745 = 30² + 31² + ... + 87².

It can be written as a sum of positive squares in 4 ways, for example, as 18496 + 196249 = 136^2 + 443^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 214745 - 2² = 214741 is a prime.

It is a super-2 number, since 2×214745² = 92230830050, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a nialpdrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 214745.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 214745.

It is not an unprimeable number, because it can be changed into a prime (214741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 596 + ... + 885.

It is an arithmetic number, because the mean of its divisors is an integer number (33345).

2²¹⁴⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

214745 is a deficient number, since it is larger than the sum of its proper divisors (52015).

214745 is a wasteful number, since it uses less digits than its factorization.

214745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515.

The product of its digits is 1120, while the sum is 23.

The square root of 214745 is about 463.4058696219. The cubic root of 214745 is about 59.8835705120.

It can be divided in two parts, 214 and 745, that added together give a palindrome (959).

The spelling of 214745 in words is "two hundred fourteen thousand, seven hundred forty-five".