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157841 is a prime number
BaseRepresentation
bin100110100010010001
322000111222
4212202101
520022331
63214425
71225115
oct464221
9260458
10157841
11a8652
1277415
1356ac8
1441745
1531b7b
hex26891

157841 has 2 divisors, whose sum is σ = 157842. Its totient is φ = 157840.

The previous prime is 157837. The next prime is 157867. The reversal of 157841 is 148751.

It is an a-pointer prime, because the next prime (157867) can be obtained adding 157841 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87616 + 70225 = 296^2 + 265^2 .

It is a cyclic number.

It is not a de Polignac number, because 157841 - 22 = 157837 is a prime.

It is a Chen prime.

It is a nialpdrome in base 11.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 157841.

It is not a weakly prime, because it can be changed into another prime (157831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78920 + 78921.

It is an arithmetic number, because the mean of its divisors is an integer number (78921).

2157841 is an apocalyptic number.

It is an amenable number.

157841 is a deficient number, since it is larger than the sum of its proper divisors (1).

157841 is an equidigital number, since it uses as much as digits as its factorization.

157841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1120, while the sum is 26.

The square root of 157841 is about 397.2920839886. The cubic root of 157841 is about 54.0430612173.

The spelling of 157841 in words is "one hundred fifty-seven thousand, eight hundred forty-one".