147099 has 4 divisors (see below), whose sum is σ = 196136. Its totient is φ = 98064.

The previous prime is 147097. The next prime is 147107. The reversal of 147099 is 990741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990741 = 3 ⋅330247.

It is not a de Polignac number, because 147099 - 2¹ = 147097 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24514 + ... + 24519.

It is an arithmetic number, because the mean of its divisors is an integer number (49034).

2¹⁴⁷⁰⁹⁹ is an apocalyptic number.

147099 is a deficient number, since it is larger than the sum of its proper divisors (49037).

147099 is an equidigital number, since it uses as much as digits as its factorization.

147099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49036.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 147099 is about 383.5348745551. The cubic root of 147099 is about 52.7881659658.

It can be divided in two parts, 1470 and 99, that multiplied together give a triangular number (145530 = T₅₃₉).

The spelling of 147099 in words is "one hundred forty-seven thousand, ninety-nine".