108521401 has 4 divisors (see below), whose sum is σ = 108542592. Its totient is φ = 108500212.

The previous prime is 108521377. The next prime is 108521423. The reversal of 108521401 is 104125801.

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 108521401 - 2¹¹ = 108519353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108521701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2400 + ... + 14926.

It is an arithmetic number, because the mean of its divisors is an integer number (27135648).

Almost surely, 2^108521401 is an apocalyptic number.

It is an amenable number.

108521401 is a deficient number, since it is larger than the sum of its proper divisors (21191).

108521401 is an equidigital number, since it uses as much as digits as its factorization.

108521401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21190.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 108521401 is about 10417.3605582220. The cubic root of 108521401 is about 476.9854490300.

The spelling of 108521401 in words is "one hundred eight million, five hundred twenty-one thousand, four hundred one".