154220272 has 10 divisors (see below), whose sum is σ = 298801808. Its totient is φ = 77110128.

The previous prime is 154220263. The next prime is 154220273. The reversal of 154220272 is 272022451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154220273) 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, 4819368 + ... + 4819399.

Almost surely, 2^154220272 is an apocalyptic number.

It is an amenable number.

154220272 is a deficient number, since it is larger than the sum of its proper divisors (144581536).

154220272 is an equidigital number, since it uses as much as digits as its factorization.

154220272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9638775 (or 9638769 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 154220272 is about 12418.5454864891. The cubic root of 154220272 is about 536.2662781793.

The spelling of 154220272 in words is "one hundred fifty-four million, two hundred twenty thousand, two hundred seventy-two".