161714381 has 2 divisors, whose sum is σ = 161714382. Its totient is φ = 161714380.

The previous prime is 161714359. The next prime is 161714393. The reversal of 161714381 is 183417161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160250281 + 1464100 = 12659^2 + 1210^2 .

It is a cyclic number.

It is not a de Polignac number, because 161714381 - 2²⁶ = 94605517 is a prime.

It is a super-2 number, since 2×161714381² = 52303082044426322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161714341) 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, 80857190 + 80857191.

It is an arithmetic number, because the mean of its divisors is an integer number (80857191).

Almost surely, 2^161714381 is an apocalyptic number.

It is an amenable number.

161714381 is a deficient number, since it is larger than the sum of its proper divisors (1).

161714381 is an equidigital number, since it uses as much as digits as its factorization.

161714381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 32.

The square root of 161714381 is about 12716.6969374913. The cubic root of 161714381 is about 544.8156164416.

The spelling of 161714381 in words is "one hundred sixty-one million, seven hundred fourteen thousand, three hundred eighty-one".