162791437 has 2 divisors, whose sum is σ = 162791438. Its totient is φ = 162791436.

The previous prime is 162791417. The next prime is 162791459. The reversal of 162791437 is 734197261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140991876 + 21799561 = 11874^2 + 4669^2 .

It is a cyclic number.

It is not a de Polignac number, because 162791437 - 2²⁷ = 28573709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 162791437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162791417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81395718 + 81395719.

It is an arithmetic number, because the mean of its divisors is an integer number (81395719).

Almost surely, 2^162791437 is an apocalyptic number.

It is an amenable number.

162791437 is a deficient number, since it is larger than the sum of its proper divisors (1).

162791437 is an equidigital number, since it uses as much as digits as its factorization.

162791437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 40.

The square root of 162791437 is about 12758.9747628875. The cubic root of 162791437 is about 546.0224746660.

The spelling of 162791437 in words is "one hundred sixty-two million, seven hundred ninety-one thousand, four hundred thirty-seven".