103281145 has 8 divisors (see below), whose sum is σ = 135204480. Its totient is φ = 75113520.

The previous prime is 103281121. The next prime is 103281161. The reversal of 103281145 is 541182301.

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

It is not a de Polignac number, because 103281145 - 2¹⁵ = 103248377 is a prime.

It is a super-2 number, since 2×103281145² = 21333989825022050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 938865 + ... + 938974.

It is an arithmetic number, because the mean of its divisors is an integer number (16900560).

Almost surely, 2^103281145 is an apocalyptic number.

It is an amenable number.

103281145 is a deficient number, since it is larger than the sum of its proper divisors (31923335).

103281145 is a wasteful number, since it uses less digits than its factorization.

103281145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1877855.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 103281145 is about 10162.7331461571. The cubic root of 103281145 is about 469.1809259173.

The spelling of 103281145 in words is "one hundred three million, two hundred eighty-one thousand, one hundred forty-five".