162565537 has 2 divisors, whose sum is σ = 162565538. Its totient is φ = 162565536.

The previous prime is 162565511. The next prime is 162565567. The reversal of 162565537 is 735565261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101787921 + 60777616 = 10089^2 + 7796^2 .

It is an emirp because it is prime and its reverse (735565261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 162565537 - 2¹⁹ = 162041249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 162565537.

It is not a weakly prime, because it can be changed into another prime (162565567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81282768 + 81282769.

It is an arithmetic number, because the mean of its divisors is an integer number (81282769).

Almost surely, 2^162565537 is an apocalyptic number.

It is an amenable number.

162565537 is a deficient number, since it is larger than the sum of its proper divisors (1).

162565537 is an equidigital number, since it uses as much as digits as its factorization.

162565537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 189000, while the sum is 40.

The square root of 162565537 is about 12750.1190974830. The cubic root of 162565537 is about 545.7697923017.

The spelling of 162565537 in words is "one hundred sixty-two million, five hundred sixty-five thousand, five hundred thirty-seven".