1354008221 has 4 divisors (see below), whose sum is σ = 1354287744. Its totient is φ = 1353728700.

The previous prime is 1354008203. The next prime is 1354008223. The reversal of 1354008221 is 1228004531.

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 1354008221 - 2²⁶ = 1286899357 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 (1354008223) 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, 132365 + ... + 142226.

It is an arithmetic number, because the mean of its divisors is an integer number (338571936).

Almost surely, 2^1354008221 is an apocalyptic number.

It is an amenable number.

1354008221 is a deficient number, since it is larger than the sum of its proper divisors (279523).

1354008221 is an equidigital number, since it uses as much as digits as its factorization.

1354008221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279522.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1354008221 is about 36796.8506940472. The cubic root of 1354008221 is about 1106.3021771766.

The spelling of 1354008221 in words is "one billion, three hundred fifty-four million, eight thousand, two hundred twenty-one".