154232422 has 4 divisors (see below), whose sum is σ = 231348636. Its totient is φ = 77116210.

The previous prime is 154232401. The next prime is 154232423. The reversal of 154232422 is 224232451.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154232423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38558104 + ... + 38558107.

It is an arithmetic number, because the mean of its divisors is an integer number (57837159).

Almost surely, 2^154232422 is an apocalyptic number.

154232422 is a deficient number, since it is larger than the sum of its proper divisors (77116214).

154232422 is an equidigital number, since it uses as much as digits as its factorization.

154232422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77116213.

The product of its digits is 3840, while the sum is 25.

The square root of 154232422 is about 12419.0346645784. The cubic root of 154232422 is about 536.2803607727.

Adding to 154232422 its reverse (224232451), we get a palindrome (378464873).

The spelling of 154232422 in words is "one hundred fifty-four million, two hundred thirty-two thousand, four hundred twenty-two".