147815 has 16 divisors (see below), whose sum is σ = 196992. Its totient is φ = 105984.

The previous prime is 147811. The next prime is 147827. The reversal of 147815 is 518741.

It is a cyclic number.

It is not a de Polignac number, because 147815 - 2² = 147811 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147811) 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, 3122 + ... + 3168.

It is an arithmetic number, because the mean of its divisors is an integer number (12312).

2¹⁴⁷⁸¹⁵ is an apocalyptic number.

147815 is a deficient number, since it is larger than the sum of its proper divisors (49177).

147815 is a wasteful number, since it uses less digits than its factorization.

147815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106.

The product of its digits is 1120, while the sum is 26.

The square root of 147815 is about 384.4671637474. The cubic root of 147815 is about 52.8736756520.

It can be divided in two parts, 147 and 815, that multiplied together give a triangular number (119805 = T₄₈₉).

The spelling of 147815 in words is "one hundred forty-seven thousand, eight hundred fifteen".