103801553 has 4 divisors (see below), whose sum is σ = 108314688. Its totient is φ = 99288420.

The previous prime is 103801531. The next prime is 103801561. The reversal of 103801553 is 355108301.

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.

It is a cyclic number.

It is not a de Polignac number, because 103801553 - 2¹⁸ = 103539409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (103801513) 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, 2256533 + ... + 2256578.

It is an arithmetic number, because the mean of its divisors is an integer number (27078672).

Almost surely, 2^103801553 is an apocalyptic number.

It is an amenable number.

103801553 is a deficient number, since it is larger than the sum of its proper divisors (4513135).

103801553 is an equidigital number, since it uses as much as digits as its factorization.

103801553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4513134.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 103801553 is about 10188.3047166837. The cubic root of 103801553 is about 469.9676347111.

Adding to 103801553 its reverse (355108301), we get a palindrome (458909854).

The spelling of 103801553 in words is "one hundred three million, eight hundred one thousand, five hundred fifty-three".