133450223 has 4 divisors (see below), whose sum is σ = 133557480. Its totient is φ = 133342968.

The previous prime is 133450183. The next prime is 133450241. The reversal of 133450223 is 322054331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322054331 = 4099 ⋅78569.

It is a cyclic number.

It is not a de Polignac number, because 133450223 - 2¹² = 133446127 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 (133450253) 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, 51740 + ... + 54257.

It is an arithmetic number, because the mean of its divisors is an integer number (33389370).

Almost surely, 2^133450223 is an apocalyptic number.

133450223 is a deficient number, since it is larger than the sum of its proper divisors (107257).

133450223 is a wasteful number, since it uses less digits than its factorization.

133450223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107256.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 133450223 is about 11552.0657460040. The cubic root of 133450223 is about 511.0222007478.

The spelling of 133450223 in words is "one hundred thirty-three million, four hundred fifty thousand, two hundred twenty-three".