154820814 has 16 divisors (see below), whose sum is σ = 311433552. Its totient is φ = 51308288.

The previous prime is 154820807. The next prime is 154820891. The reversal of 154820814 is 418028451.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 73539 + ... + 75614.

It is an arithmetic number, because the mean of its divisors is an integer number (19464597).

Almost surely, 2^154820814 is an apocalyptic number.

154820814 is an abundant number, since it is smaller than the sum of its proper divisors (156612738).

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

154820814 is a wasteful number, since it uses less digits than its factorization.

154820814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149331.

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 154820814 is about 12442.7012340569. The cubic root of 154820814 is about 536.9614598046.

The spelling of 154820814 in words is "one hundred fifty-four million, eight hundred twenty thousand, eight hundred fourteen".