103475521 has 4 divisors (see below), whose sum is σ = 103633200. Its totient is φ = 103317844.

The previous prime is 103475483. The next prime is 103475531. The reversal of 103475521 is 125574301.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-103475521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103475521.

It is not an unprimeable number, because it can be changed into a prime (103475531) 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, 77851 + ... + 79168.

It is an arithmetic number, because the mean of its divisors is an integer number (25908300).

Almost surely, 2^103475521 is an apocalyptic number.

It is an amenable number.

103475521 is a deficient number, since it is larger than the sum of its proper divisors (157679).

103475521 is an equidigital number, since it uses as much as digits as its factorization.

103475521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157678.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 103475521 is about 10172.2918263290. The cubic root of 103475521 is about 469.4750756381.

The spelling of 103475521 in words is "one hundred three million, four hundred seventy-five thousand, five hundred twenty-one".