161153471 has 2 divisors, whose sum is σ = 161153472. Its totient is φ = 161153470.

The previous prime is 161153441. The next prime is 161153519. The reversal of 161153471 is 174351161.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161153471 is a prime.

It is a super-3 number, since 3×161153471³ (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 (161153431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80576735 + 80576736.

It is an arithmetic number, because the mean of its divisors is an integer number (80576736).

Almost surely, 2^161153471 is an apocalyptic number.

161153471 is a deficient number, since it is larger than the sum of its proper divisors (1).

161153471 is an equidigital number, since it uses as much as digits as its factorization.

161153471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 29.

The square root of 161153471 is about 12694.6237045452. The cubic root of 161153471 is about 544.1849849827.

The spelling of 161153471 in words is "one hundred sixty-one million, one hundred fifty-three thousand, four hundred seventy-one".