146857 has 2 divisors, whose sum is σ = 146858. Its totient is φ = 146856.

The previous prime is 146849. The next prime is 146891. The reversal of 146857 is 758641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137641 + 9216 = 371^2 + 96^2 .

It is a cyclic number.

It is not a de Polignac number, because 146857 - 2³ = 146849 is a prime.

It is a Chen prime.

146857 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (146807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73428 + 73429.

It is an arithmetic number, because the mean of its divisors is an integer number (73429).

2¹⁴⁶⁸⁵⁷ is an apocalyptic number.

It is an amenable number.

146857 is a deficient number, since it is larger than the sum of its proper divisors (1).

146857 is an equidigital number, since it uses as much as digits as its factorization.

146857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 31.

The square root of 146857 is about 383.2192583887. The cubic root of 146857 is about 52.7592019166.

The spelling of 146857 in words is "one hundred forty-six thousand, eight hundred fifty-seven".