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161263 is a prime number
BaseRepresentation
bin100111010111101111
322012012201
4213113233
520130023
63242331
71241104
oct472757
9265181
10161263
11100183
12793a7
135852b
1442aab
1532bad
hex275ef

161263 has 2 divisors, whose sum is σ = 161264. Its totient is φ = 161262.

The previous prime is 161237. The next prime is 161267. The reversal of 161263 is 362161.

It is a strong prime.

It is an emirp because it is prime and its reverse (362161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 161263 - 29 = 160751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80631 + 80632.

It is an arithmetic number, because the mean of its divisors is an integer number (80632).

2161263 is an apocalyptic number.

161263 is a deficient number, since it is larger than the sum of its proper divisors (1).

161263 is an equidigital number, since it uses as much as digits as its factorization.

161263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 19.

The square root of 161263 is about 401.5756466720. The cubic root of 161263 is about 54.4308243345.

It can be divided in two parts, 16126 and 3, that added together give a square (16129 = 1272).

The spelling of 161263 in words is "one hundred sixty-one thousand, two hundred sixty-three".