162405057 has 4 divisors (see below), whose sum is σ = 216540080. Its totient is φ = 108270036.

The previous prime is 162405053. The next prime is 162405101. The reversal of 162405057 is 750504261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 162405057 - 2² = 162405053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162405053) 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 in 3 ways as a sum of consecutive naturals, for example, 27067507 + ... + 27067512.

It is an arithmetic number, because the mean of its divisors is an integer number (54135020).

Almost surely, 2^162405057 is an apocalyptic number.

It is an amenable number.

162405057 is a deficient number, since it is larger than the sum of its proper divisors (54135023).

162405057 is an equidigital number, since it uses as much as digits as its factorization.

162405057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54135022.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 162405057 is about 12743.8242690332. The cubic root of 162405057 is about 545.5901437854.

The spelling of 162405057 in words is "one hundred sixty-two million, four hundred five thousand, fifty-seven".