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154157 is a prime number
BaseRepresentation
bin100101101000101101
321211110112
4211220231
514413112
63145405
71211303
oct455055
9254415
10154157
11a5903
1275265
1355223
1440273
1530a22
hex25a2d

154157 has 2 divisors, whose sum is σ = 154158. Its totient is φ = 154156.

The previous prime is 154153. The next prime is 154159. The reversal of 154157 is 751451.

154157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81796 + 72361 = 286^2 + 269^2 .

It is a cyclic number.

It is not a de Polignac number, because 154157 - 22 = 154153 is a prime.

Together with 154159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77078 + 77079.

It is an arithmetic number, because the mean of its divisors is an integer number (77079).

2154157 is an apocalyptic number.

It is an amenable number.

154157 is a deficient number, since it is larger than the sum of its proper divisors (1).

154157 is an equidigital number, since it uses as much as digits as its factorization.

154157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 700, while the sum is 23.

The square root of 154157 is about 392.6283229722. The cubic root of 154157 is about 53.6192930102.

The spelling of 154157 in words is "one hundred fifty-four thousand, one hundred fifty-seven".