161235527 has 2 divisors, whose sum is σ = 161235528. Its totient is φ = 161235526.

The previous prime is 161235511. The next prime is 161235559. The reversal of 161235527 is 725532161.

It is an a-pointer prime, because the next prime (161235559) can be obtained adding 161235527 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161235527 - 2⁴ = 161235511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161235493 and 161235502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161235587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80617763 + 80617764.

It is an arithmetic number, because the mean of its divisors is an integer number (80617764).

Almost surely, 2^161235527 is an apocalyptic number.

161235527 is a deficient number, since it is larger than the sum of its proper divisors (1).

161235527 is an equidigital number, since it uses as much as digits as its factorization.

161235527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 32.

The square root of 161235527 is about 12697.8552125940. The cubic root of 161235527 is about 544.2773318744.

Adding to 161235527 its reverse (725532161), we get a palindrome (886767688).

The spelling of 161235527 in words is "one hundred sixty-one million, two hundred thirty-five thousand, five hundred twenty-seven".