162381097 has 4 divisors (see below), whose sum is σ = 162415876. Its totient is φ = 162346320.

The previous prime is 162381083. The next prime is 162381101. The reversal of 162381097 is 790183261.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 74321641 + 88059456 = 8621^2 + 9384^2 .

It is a cyclic number.

It is not a de Polignac number, because 162381097 - 2⁷ = 162380969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162381017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9054 + ... + 20167.

It is an arithmetic number, because the mean of its divisors is an integer number (40603969).

Almost surely, 2^162381097 is an apocalyptic number.

It is an amenable number.

162381097 is a deficient number, since it is larger than the sum of its proper divisors (34779).

162381097 is an equidigital number, since it uses as much as digits as its factorization.

162381097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34778.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 162381097 is about 12742.8841711757. The cubic root of 162381097 is about 545.5633117334.

The spelling of 162381097 in words is "one hundred sixty-two million, three hundred eighty-one thousand, ninety-seven".