103072745 has 8 divisors (see below), whose sum is σ = 123742080. Its totient is φ = 82421680.

The previous prime is 103072741. The next prime is 103072771. The reversal of 103072745 is 547270301.

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

It is not a de Polignac number, because 103072745 - 2² = 103072741 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (103072741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17936 + ... + 22974.

It is an arithmetic number, because the mean of its divisors is an integer number (15467760).

Almost surely, 2^103072745 is an apocalyptic number.

It is an amenable number.

103072745 is a deficient number, since it is larger than the sum of its proper divisors (20669335).

103072745 is an equidigital number, since it uses as much as digits as its factorization.

103072745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9135.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 103072745 is about 10152.4748214413. The cubic root of 103072745 is about 468.8651433880.

The spelling of 103072745 in words is "one hundred three million, seventy-two thousand, seven hundred forty-five".