154639222 has 16 divisors (see below), whose sum is σ = 240003072. Its totient is φ = 74649960.

The previous prime is 154639183. The next prime is 154639237. The reversal of 154639222 is 222936451.

It is a congruent number.

It is an unprimeable number.

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, 26013 + ... + 31399.

It is an arithmetic number, because the mean of its divisors is an integer number (15000192).

Almost surely, 2^154639222 is an apocalyptic number.

154639222 is a deficient number, since it is larger than the sum of its proper divisors (85363850).

154639222 is a wasteful number, since it uses less digits than its factorization.

154639222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5883.

The product of its digits is 25920, while the sum is 34.

The square root of 154639222 is about 12435.4019637485. The cubic root of 154639222 is about 536.7514405558.

The spelling of 154639222 in words is "one hundred fifty-four million, six hundred thirty-nine thousand, two hundred twenty-two".