161460749 has 2 divisors, whose sum is σ = 161460750. Its totient is φ = 161460748.

The previous prime is 161460731. The next prime is 161460763. The reversal of 161460749 is 947064161.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128029225 + 33431524 = 11315^2 + 5782^2 .

It is an emirp because it is prime and its reverse (947064161) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161460749 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161460709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80730374 + 80730375.

It is an arithmetic number, because the mean of its divisors is an integer number (80730375).

Almost surely, 2^161460749 is an apocalyptic number.

It is an amenable number.

161460749 is a deficient number, since it is larger than the sum of its proper divisors (1).

161460749 is an equidigital number, since it uses as much as digits as its factorization.

161460749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 161460749 is about 12706.7206233552. The cubic root of 161460749 is about 544.5306387374.

The spelling of 161460749 in words is "one hundred sixty-one million, four hundred sixty thousand, seven hundred forty-nine".