22142037 has 4 divisors (see below), whose sum is σ = 29522720. Its totient is φ = 14761356.

The previous prime is 22142023. The next prime is 22142039. The reversal of 22142037 is 73024122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22142037 - 2⁷ = 22141909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22142039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3690337 + ... + 3690342.

It is an arithmetic number, because the mean of its divisors is an integer number (7380680).

Almost surely, 2^22142037 is an apocalyptic number.

It is an amenable number.

22142037 is a deficient number, since it is larger than the sum of its proper divisors (7380683).

22142037 is an equidigital number, since it uses as much as digits as its factorization.

22142037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7380682.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 22142037 is about 4705.5325947229. The cubic root of 22142037 is about 280.8056600469.

Adding to 22142037 its reverse (73024122), we get a palindrome (95166159).

The spelling of 22142037 in words is "twenty-two million, one hundred forty-two thousand, thirty-seven".