154571057 has 2 divisors, whose sum is σ = 154571058. Its totient is φ = 154571056.

The previous prime is 154571051. The next prime is 154571059. The reversal of 154571057 is 750175451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150822961 + 3748096 = 12281^2 + 1936^2 .

It is a cyclic number.

It is not a de Polignac number, because 154571057 - 2⁶ = 154570993 is a prime.

Together with 154571059, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (154571051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77285528 + 77285529.

It is an arithmetic number, because the mean of its divisors is an integer number (77285529).

Almost surely, 2^154571057 is an apocalyptic number.

It is an amenable number.

154571057 is a deficient number, since it is larger than the sum of its proper divisors (1).

154571057 is an equidigital number, since it uses as much as digits as its factorization.

154571057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24500, while the sum is 35.

The square root of 154571057 is about 12432.6608978127. The cubic root of 154571057 is about 536.6725622506.

The spelling of 154571057 in words is "one hundred fifty-four million, five hundred seventy-one thousand, fifty-seven".