154022399 has 8 divisors (see below), whose sum is σ = 157135680. Its totient is φ = 150916896.

The previous prime is 154022383. The next prime is 154022437. The reversal of 154022399 is 993220451.

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 154022399 - 2⁴ = 154022383 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 (154022369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53669 + ... + 56465.

It is an arithmetic number, because the mean of its divisors is an integer number (19641960).

Almost surely, 2^154022399 is an apocalyptic number.

154022399 is a deficient number, since it is larger than the sum of its proper divisors (3113281).

154022399 is a wasteful number, since it uses less digits than its factorization.

154022399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3889.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 154022399 is about 12410.5760946058. The cubic root of 154022399 is about 536.0368270809.

The spelling of 154022399 in words is "one hundred fifty-four million, twenty-two thousand, three hundred ninety-nine".