162156437 has 2 divisors, whose sum is σ = 162156438. Its totient is φ = 162156436.

The previous prime is 162156419. The next prime is 162156473. The reversal of 162156437 is 734651261.

Together with next prime (162156473) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162154756 + 1681 = 12734^2 + 41^2 .

It is an emirp because it is prime and its reverse (734651261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 162156437 - 2²⁶ = 95047573 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 162156397 and 162156406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162156497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81078218 + 81078219.

It is an arithmetic number, because the mean of its divisors is an integer number (81078219).

Almost surely, 2^162156437 is an apocalyptic number.

It is an amenable number.

162156437 is a deficient number, since it is larger than the sum of its proper divisors (1).

162156437 is an equidigital number, since it uses as much as digits as its factorization.

162156437 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 162156437 is about 12734.0660042266. The cubic root of 162156437 is about 545.3115935546.

The spelling of 162156437 in words is "one hundred sixty-two million, one hundred fifty-six thousand, four hundred thirty-seven".