109103149 has 4 divisors (see below), whose sum is σ = 114845440. Its totient is φ = 103360860.

The previous prime is 109103147. The next prime is 109103153. The reversal of 109103149 is 941301901.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 941301901 = 947 ⋅993983.

It is a cyclic number.

It is not a de Polignac number, because 109103149 - 2¹ = 109103147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109103147) 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, 2871117 + ... + 2871154.

It is an arithmetic number, because the mean of its divisors is an integer number (28711360).

Almost surely, 2^109103149 is an apocalyptic number.

109103149 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

109103149 is a deficient number, since it is larger than the sum of its proper divisors (5742291).

109103149 is an equidigital number, since it uses as much as digits as its factorization.

109103149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5742290.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 109103149 is about 10445.2452819453. The cubic root of 109103149 is about 477.8362519242.

The spelling of 109103149 in words is "one hundred nine million, one hundred three thousand, one hundred forty-nine".