162140306 has 4 divisors (see below), whose sum is σ = 243210462. Its totient is φ = 81070152.

The previous prime is 162140291. The next prime is 162140351. The reversal of 162140306 is 603041261.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 603041261 = 53 ⋅11378137.

It can be written as a sum of positive squares in only one way, i.e., 119355625 + 42784681 = 10925^2 + 6541^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40535075 + ... + 40535078.

Almost surely, 2^162140306 is an apocalyptic number.

162140306 is a deficient number, since it is larger than the sum of its proper divisors (81070156).

162140306 is an equidigital number, since it uses as much as digits as its factorization.

162140306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81070155.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 162140306 is about 12733.4326086880. The cubic root of 162140306 is about 545.2935107839.

Adding to 162140306 its reverse (603041261), we get a palindrome (765181567).

The spelling of 162140306 in words is "one hundred sixty-two million, one hundred forty thousand, three hundred six".