147816 has 24 divisors (see below), whose sum is σ = 400530. Its totient is φ = 49248.

The previous prime is 147811. The next prime is 147827. The reversal of 147816 is 618741.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 125316 + 22500 = 354^2 + 150^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

It is a self number, because there is not a number n which added to its sum of digits gives 147816.

It is not an unprimeable number, because it can be changed into a prime (147811) by changing a digit.

147816 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 in 5 ways as a sum of consecutive naturals, for example, 955 + ... + 1098.

2¹⁴⁷⁸¹⁶ is an apocalyptic number.

It is an amenable number.

147816 is an abundant number, since it is smaller than the sum of its proper divisors (252714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

147816 is a wasteful number, since it uses less digits than its factorization.

147816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065 (or 2058 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 147816 is about 384.4684642464. The cubic root of 147816 is about 52.8737948856.

The spelling of 147816 in words is "one hundred forty-seven thousand, eight hundred sixteen".