162645541 has 2 divisors, whose sum is σ = 162645542. Its totient is φ = 162645540.

The previous prime is 162645503. The next prime is 162645583. The reversal of 162645541 is 145546261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156500100 + 6145441 = 12510^2 + 2479^2 .

It is a cyclic number.

It is not a de Polignac number, because 162645541 - 2²⁷ = 28427813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 162645497 and 162645506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162645641) 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, 81322770 + 81322771.

It is an arithmetic number, because the mean of its divisors is an integer number (81322771).

Almost surely, 2^162645541 is an apocalyptic number.

It is an amenable number.

162645541 is a deficient number, since it is larger than the sum of its proper divisors (1).

162645541 is an equidigital number, since it uses as much as digits as its factorization.

162645541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 34.

The square root of 162645541 is about 12753.2560940334. The cubic root of 162645541 is about 545.8593082110.

The spelling of 162645541 in words is "one hundred sixty-two million, six hundred forty-five thousand, five hundred forty-one".