108143149 has 4 divisors (see below), whose sum is σ = 109624636. Its totient is φ = 106661664.

The previous prime is 108143143. The next prime is 108143173. The reversal of 108143149 is 941341801.

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

It can be written as a sum of positive squares in 2 ways, for example, as 93741124 + 14402025 = 9682^2 + 3795^2 .

It is a cyclic number.

It is not a de Polignac number, because 108143149 - 2³ = 108143141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108143149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108143141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 740634 + ... + 740779.

It is an arithmetic number, because the mean of its divisors is an integer number (27406159).

Almost surely, 2^108143149 is an apocalyptic number.

It is an amenable number.

108143149 is a deficient number, since it is larger than the sum of its proper divisors (1481487).

108143149 is an equidigital number, since it uses as much as digits as its factorization.

108143149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481486.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 108143149 is about 10399.1898242123. The cubic root of 108143149 is about 476.4306253595.

The spelling of 108143149 in words is "one hundred eight million, one hundred forty-three thousand, one hundred forty-nine".