161102471 has 2 divisors, whose sum is σ = 161102472. Its totient is φ = 161102470.

The previous prime is 161102441. The next prime is 161102497. The reversal of 161102471 is 174201161.

It is a happy number.

161102471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161102471 is a prime.

It is a super-3 number, since 3×161102471³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161102401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80551235 + 80551236.

It is an arithmetic number, because the mean of its divisors is an integer number (80551236).

Almost surely, 2^161102471 is an apocalyptic number.

161102471 is a deficient number, since it is larger than the sum of its proper divisors (1).

161102471 is an equidigital number, since it uses as much as digits as its factorization.

161102471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 161102471 is about 12692.6148212258. The cubic root of 161102471 is about 544.1275731209.

It can be divided in two parts, 16110 and 2471, that added together give a palindrome (18581).

The spelling of 161102471 in words is "one hundred sixty-one million, one hundred two thousand, four hundred seventy-one".