162071738 has 4 divisors (see below), whose sum is σ = 243107610. Its totient is φ = 81035868.

The previous prime is 162071737. The next prime is 162071743. The reversal of 162071738 is 837170261.

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

It can be written as a sum of positive squares in only one way, i.e., 145612489 + 16459249 = 12067^2 + 4057^2 .

It is a junction number, because it is equal to n+sod(n) for n = 162071698 and 162071707.

It is not an unprimeable number, because it can be changed into a prime (162071737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40517933 + ... + 40517936.

Almost surely, 2^162071738 is an apocalyptic number.

162071738 is a deficient number, since it is larger than the sum of its proper divisors (81035872).

162071738 is an equidigital number, since it uses as much as digits as its factorization.

162071738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81035871.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 162071738 is about 12730.7398842330. The cubic root of 162071738 is about 545.2166330101.

The spelling of 162071738 in words is "one hundred sixty-two million, seventy-one thousand, seven hundred thirty-eight".