154214820057 has 4 divisors (see below), whose sum is σ = 205619760080. Its totient is φ = 102809880036.

The previous prime is 154214820047. The next prime is 154214820059. The reversal of 154214820057 is 750028412451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 154214820057 - 2¹² = 154214815961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 154214819997 and 154214820024.

It is not an unprimeable number, because it can be changed into a prime (154214820059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25702470007 + ... + 25702470012.

It is an arithmetic number, because the mean of its divisors is an integer number (51404940020).

Almost surely, 2^154214820057 is an apocalyptic number.

It is an amenable number.

154214820057 is a deficient number, since it is larger than the sum of its proper divisors (51404940023).

154214820057 is an equidigital number, since it uses as much as digits as its factorization.

154214820057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51404940022.

The product of its (nonzero) digits is 89600, while the sum is 39.

The spelling of 154214820057 in words is "one hundred fifty-four billion, two hundred fourteen million, eight hundred twenty thousand, fifty-seven".