154013857 has 2 divisors, whose sum is σ = 154013858. Its totient is φ = 154013856.

The previous prime is 154013843. The next prime is 154013879. The reversal of 154013857 is 758310451.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117483921 + 36529936 = 10839^2 + 6044^2 .

It is a cyclic number.

It is not a de Polignac number, because 154013857 - 2¹⁹ = 153489569 is a prime.

It is not a weakly prime, because it can be changed into another prime (154013257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77006928 + 77006929.

It is an arithmetic number, because the mean of its divisors is an integer number (77006929).

Almost surely, 2^154013857 is an apocalyptic number.

It is an amenable number.

154013857 is a deficient number, since it is larger than the sum of its proper divisors (1).

154013857 is an equidigital number, since it uses as much as digits as its factorization.

154013857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 154013857 is about 12410.2319478727. The cubic root of 154013857 is about 536.0269174590.

The spelling of 154013857 in words is "one hundred fifty-four million, thirteen thousand, eight hundred fifty-seven".