154222141 has 8 divisors (see below), whose sum is σ = 158510720. Its totient is φ = 149992128.

The previous prime is 154222139. The next prime is 154222151. The reversal of 154222141 is 141222451.

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

It is a cyclic number.

It is not a de Polignac number, because 154222141 - 2¹ = 154222139 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 (154222121) 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, 9276 + ... + 19861.

It is an arithmetic number, because the mean of its divisors is an integer number (19813840).

Almost surely, 2^154222141 is an apocalyptic number.

It is an amenable number.

154222141 is a deficient number, since it is larger than the sum of its proper divisors (4288579).

154222141 is an equidigital number, since it uses as much as digits as its factorization.

154222141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29283.

The product of its digits is 640, while the sum is 22.

The square root of 154222141 is about 12418.6207366197. The cubic root of 154222141 is about 536.2684445128.

Adding to 154222141 its reverse (141222451), we get a palindrome (295444592).

The spelling of 154222141 in words is "one hundred fifty-four million, two hundred twenty-two thousand, one hundred forty-one".