162428287 has 12 divisors (see below), whose sum is σ = 192970080. Its totient is φ = 136260096.

The previous prime is 162428269. The next prime is 162428297. The reversal of 162428287 is 782824261.

It is a de Polignac number, because none of the positive numbers 2^k-162428287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162428267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32962 + ... + 37567.

It is an arithmetic number, because the mean of its divisors is an integer number (16080840).

Almost surely, 2^162428287 is an apocalyptic number.

162428287 is a deficient number, since it is larger than the sum of its proper divisors (30541793).

162428287 is an equidigital number, since it uses as much as digits as its factorization.

162428287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70590 (or 70583 counting only the distinct ones).

The product of its digits is 86016, while the sum is 40.

The square root of 162428287 is about 12744.7356583022. The cubic root of 162428287 is about 545.6161558136.

The spelling of 162428287 in words is "one hundred sixty-two million, four hundred twenty-eight thousand, two hundred eighty-seven".