161417353 has 2 divisors, whose sum is σ = 161417354. Its totient is φ = 161417352.

The previous prime is 161417327. The next prime is 161417371. The reversal of 161417353 is 353714161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146579449 + 14837904 = 12107^2 + 3852^2 .

It is an emirp because it is prime and its reverse (353714161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 161417353 - 2⁹ = 161416841 is a prime.

It is not a weakly prime, because it can be changed into another prime (161417323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80708676 + 80708677.

It is an arithmetic number, because the mean of its divisors is an integer number (80708677).

Almost surely, 2^161417353 is an apocalyptic number.

It is an amenable number.

161417353 is a deficient number, since it is larger than the sum of its proper divisors (1).

161417353 is an equidigital number, since it uses as much as digits as its factorization.

161417353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 31.

The square root of 161417353 is about 12705.0129082973. The cubic root of 161417353 is about 544.4818496475.

The spelling of 161417353 in words is "one hundred sixty-one million, four hundred seventeen thousand, three hundred fifty-three".