261614 has 4 divisors (see below), whose sum is σ = 392424. Its totient is φ = 130806.

The previous prime is 261601. The next prime is 261619. The reversal of 261614 is 416162.

It is a happy number.

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

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 261614.

It is not an unprimeable number, because it can be changed into a prime (261619) by changing a digit.

261614 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65402 + ... + 65405.

It is an arithmetic number, because the mean of its divisors is an integer number (98106).

2²⁶¹⁶¹⁴ is an apocalyptic number.

261614 is a deficient number, since it is larger than the sum of its proper divisors (130810).

261614 is a wasteful number, since it uses less digits than its factorization.

261614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130809.

The product of its digits is 288, while the sum is 20.

The square root of 261614 is about 511.4821600017. The cubic root of 261614 is about 63.9568393893.

Adding to 261614 its reverse (416162), we get a palindrome (677776).

It can be divided in two parts, 2 and 61614, that added together give a palindrome (61616).

The spelling of 261614 in words is "two hundred sixty-one thousand, six hundred fourteen".