20197162 has 4 divisors (see below), whose sum is σ = 30295746. Its totient is φ = 10098580.

The previous prime is 20197159. The next prime is 20197183. The reversal of 20197162 is 26179102.

It is a happy number.

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., 10949481 + 9247681 = 3309^2 + 3041^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20197162.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5049289 + ... + 5049292.

Almost surely, 2^20197162 is an apocalyptic number.

20197162 is a deficient number, since it is larger than the sum of its proper divisors (10098584).

20197162 is a wasteful number, since it uses less digits than its factorization.

20197162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10098583.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 20197162 is about 4494.1252764025. The cubic root of 20197162 is about 272.3308132518.

The spelling of 20197162 in words is "twenty million, one hundred ninety-seven thousand, one hundred sixty-two".