161102519 has 2 divisors, whose sum is σ = 161102520. Its totient is φ = 161102518.

The previous prime is 161102507. The next prime is 161102521. The reversal of 161102519 is 915201161.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161102519 is a prime.

It is a super-4 number, since 4×161102519⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

Together with 161102521, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161102219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80551259 + 80551260.

It is an arithmetic number, because the mean of its divisors is an integer number (80551260).

Almost surely, 2^161102519 is an apocalyptic number.

161102519 is a deficient number, since it is larger than the sum of its proper divisors (1).

161102519 is an equidigital number, since it uses as much as digits as its factorization.

161102519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 26.

The square root of 161102519 is about 12692.6167120890. The cubic root of 161102519 is about 544.1276271613.

The spelling of 161102519 in words is "one hundred sixty-one million, one hundred two thousand, five hundred nineteen".