162345761 has 2 divisors, whose sum is σ = 162345762. Its totient is φ = 162345760.

The previous prime is 162345727. The next prime is 162345763. The reversal of 162345761 is 167543261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95433361 + 66912400 = 9769^2 + 8180^2 .

It is a cyclic number.

It is not a de Polignac number, because 162345761 - 2⁶ = 162345697 is a prime.

It is a super-2 number, since 2×162345761² = 52712292229338242, which contains 22 as substring.

Together with 162345763, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (162345763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81172880 + 81172881.

It is an arithmetic number, because the mean of its divisors is an integer number (81172881).

Almost surely, 2^162345761 is an apocalyptic number.

It is an amenable number.

162345761 is a deficient number, since it is larger than the sum of its proper divisors (1).

162345761 is an equidigital number, since it uses as much as digits as its factorization.

162345761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 162345761 is about 12741.4975964366. The cubic root of 162345761 is about 545.5237352390.

The spelling of 162345761 in words is "one hundred sixty-two million, three hundred forty-five thousand, seven hundred sixty-one".