154521342 has 12 divisors (see below), whose sum is σ = 334796280. Its totient is φ = 51507108.

The previous prime is 154521331. The next prime is 154521359. The reversal of 154521342 is 243125451.

154521342 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4292242 + ... + 4292277.

It is an arithmetic number, because the mean of its divisors is an integer number (27899690).

Almost surely, 2^154521342 is an apocalyptic number.

154521342 is an abundant number, since it is smaller than the sum of its proper divisors (180274938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154521342 is a wasteful number, since it uses less digits than its factorization.

154521342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8584527 (or 8584524 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 154521342 is about 12430.6613661543. The cubic root of 154521342 is about 536.6150190557.

Adding to 154521342 its reverse (243125451), we get a palindrome (397646793).

The spelling of 154521342 in words is "one hundred fifty-four million, five hundred twenty-one thousand, three hundred forty-two".