154420057 has 8 divisors (see below), whose sum is σ = 169468992. Its totient is φ = 139539600.

The previous prime is 154420043. The next prime is 154420081. The reversal of 154420057 is 750024451.

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 154420057 - 2⁷ = 154419929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (154420957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40194 + ... + 43867.

It is an arithmetic number, because the mean of its divisors is an integer number (21183624).

Almost surely, 2^154420057 is an apocalyptic number.

It is an amenable number.

154420057 is a deficient number, since it is larger than the sum of its proper divisors (15048935).

154420057 is a wasteful number, since it uses less digits than its factorization.

154420057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84239.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 154420057 is about 12426.5866994923. The cubic root of 154420057 is about 536.4977473764.

The spelling of 154420057 in words is "one hundred fifty-four million, four hundred twenty thousand, fifty-seven".