103154221 has 4 divisors (see below), whose sum is σ = 104100700. Its totient is φ = 102207744.

The previous prime is 103154213. The next prime is 103154231. The reversal of 103154221 is 122451301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35832196 + 67322025 = 5986^2 + 8205^2 .

It is a cyclic number.

It is not a de Polignac number, because 103154221 - 2³ = 103154213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103154231) 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, 473076 + ... + 473293.

It is an arithmetic number, because the mean of its divisors is an integer number (26025175).

Almost surely, 2^103154221 is an apocalyptic number.

It is an amenable number.

103154221 is a deficient number, since it is larger than the sum of its proper divisors (946479).

103154221 is an equidigital number, since it uses as much as digits as its factorization.

103154221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946478.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 103154221 is about 10156.4866464738. The cubic root of 103154221 is about 468.9886522593.

The spelling of 103154221 in words is "one hundred three million, one hundred fifty-four thousand, two hundred twenty-one".