20137322 has 4 divisors (see below), whose sum is σ = 30205986. Its totient is φ = 10068660.

The previous prime is 20137309. The next prime is 20137331. The reversal of 20137322 is 22373102.

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., 17147881 + 2989441 = 4141^2 + 1729^2 .

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 20137294 and 20137303.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5034329 + ... + 5034332.

Almost surely, 2^20137322 is an apocalyptic number.

20137322 is a deficient number, since it is larger than the sum of its proper divisors (10068664).

20137322 is a wasteful number, since it uses less digits than its factorization.

20137322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10068663.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 20137322 is about 4487.4627575056. The cubic root of 20137322 is about 272.0615939663.

The spelling of 20137322 in words is "twenty million, one hundred thirty-seven thousand, three hundred twenty-two".