103135553 has 4 divisors (see below), whose sum is σ = 108563760. Its totient is φ = 97707348.

The previous prime is 103135547. The next prime is 103135561. The reversal of 103135553 is 355531301.

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: 355531301 = 773 ⋅459937.

It is not a de Polignac number, because 103135553 - 2⁴ = 103135537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103135573) 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, 2714075 + ... + 2714112.

It is an arithmetic number, because the mean of its divisors is an integer number (27140940).

Almost surely, 2^103135553 is an apocalyptic number.

It is an amenable number.

103135553 is a deficient number, since it is larger than the sum of its proper divisors (5428207).

103135553 is an equidigital number, since it uses as much as digits as its factorization.

103135553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5428206.

The product of its (nonzero) digits is 3375, while the sum is 26.

The square root of 103135553 is about 10155.5675863046. The cubic root of 103135553 is about 468.9603593199.

Adding to 103135553 its reverse (355531301), we get a palindrome (458666854).

The spelling of 103135553 in words is "one hundred three million, one hundred thirty-five thousand, five hundred fifty-three".