103509149 has 8 divisors (see below), whose sum is σ = 107321760. Its totient is φ = 99712816.

The previous prime is 103509121. The next prime is 103509151. The reversal of 103509149 is 941905301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 103509149 - 2⁸ = 103508893 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 (103509179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9722 + ... + 17364.

It is an arithmetic number, because the mean of its divisors is an integer number (13415220).

Almost surely, 2^103509149 is an apocalyptic number.

It is an amenable number.

103509149 is a deficient number, since it is larger than the sum of its proper divisors (3812611).

103509149 is an equidigital number, since it uses as much as digits as its factorization.

103509149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8139.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 103509149 is about 10173.9446135705. The cubic root of 103509149 is about 469.5259275941.

The spelling of 103509149 in words is "one hundred three million, five hundred nine thousand, one hundred forty-nine".