154022241 has 8 divisors (see below), whose sum is σ = 205633120. Its totient is φ = 102546432.

The previous prime is 154022233. The next prime is 154022251. The reversal of 154022241 is 142220451.

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

It is not a de Polignac number, because 154022241 - 2³ = 154022233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (154022201) 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, 31075 + ... + 35688.

It is an arithmetic number, because the mean of its divisors is an integer number (25704140).

Almost surely, 2^154022241 is an apocalyptic number.

It is an amenable number.

154022241 is a deficient number, since it is larger than the sum of its proper divisors (51610879).

154022241 is an equidigital number, since it uses as much as digits as its factorization.

154022241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67535.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 154022241 is about 12410.5697290656. The cubic root of 154022241 is about 536.0366437876.

Adding to 154022241 its reverse (142220451), we get a palindrome (296242692).

The spelling of 154022241 in words is "one hundred fifty-four million, twenty-two thousand, two hundred forty-one".