154414221 has 8 divisors (see below), whose sum is σ = 221723040. Its totient is φ = 95024112.

The previous prime is 154414219. The next prime is 154414229. The reversal of 154414221 is 122414451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 154414221 - 2¹ = 154414219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 154414191 and 154414200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154414229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1979631 + ... + 1979708.

It is an arithmetic number, because the mean of its divisors is an integer number (27715380).

Almost surely, 2^154414221 is an apocalyptic number.

It is an amenable number.

154414221 is a deficient number, since it is larger than the sum of its proper divisors (67308819).

154414221 is a wasteful number, since it uses less digits than its factorization.

154414221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3959355.

The product of its digits is 1280, while the sum is 24.

The square root of 154414221 is about 12426.3518781660. The cubic root of 154414221 is about 536.4909886682.

Adding to 154414221 its reverse (122414451), we get a palindrome (276828672).

The spelling of 154414221 in words is "one hundred fifty-four million, four hundred fourteen thousand, two hundred twenty-one".