161054497 has 2 divisors, whose sum is σ = 161054498. Its totient is φ = 161054496.

The previous prime is 161054473. The next prime is 161054501. The reversal of 161054497 is 794450161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123121216 + 37933281 = 11096^2 + 6159^2 .

It is an emirp because it is prime and its reverse (794450161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 161054497 - 2²⁷ = 26836769 is a prime.

It is not a weakly prime, because it can be changed into another prime (161054407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80527248 + 80527249.

It is an arithmetic number, because the mean of its divisors is an integer number (80527249).

Almost surely, 2^161054497 is an apocalyptic number.

It is an amenable number.

161054497 is a deficient number, since it is larger than the sum of its proper divisors (1).

161054497 is an equidigital number, since it uses as much as digits as its factorization.

161054497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 161054497 is about 12690.7248413950. The cubic root of 161054497 is about 544.0735566356.

It can be divided in two parts, 16105 and 4497, that added together give a palindrome (20602).

The spelling of 161054497 in words is "one hundred sixty-one million, fifty-four thousand, four hundred ninety-seven".