154223089 has 4 divisors (see below), whose sum is σ = 156175360. Its totient is φ = 152270820.

The previous prime is 154223077. The next prime is 154223093. The reversal of 154223089 is 980322451.

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, and also an emirpimes, since its reverse is a distinct semiprime: 980322451 = 89 ⋅11014859.

It is a cyclic number.

It is not a de Polignac number, because 154223089 - 2⁷ = 154222961 is a prime.

It is a super-2 number, since 2×154223089² = 47569522361403842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154223389) 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, 976017 + ... + 976174.

It is an arithmetic number, because the mean of its divisors is an integer number (39043840).

Almost surely, 2^154223089 is an apocalyptic number.

It is an amenable number.

154223089 is a deficient number, since it is larger than the sum of its proper divisors (1952271).

154223089 is an equidigital number, since it uses as much as digits as its factorization.

154223089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952270.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 154223089 is about 12418.6589050509. The cubic root of 154223089 is about 536.2695433205.

The spelling of 154223089 in words is "one hundred fifty-four million, two hundred twenty-three thousand, eighty-nine".