22135457 has 16 divisors (see below), whose sum is σ = 23639040. Its totient is φ = 20697600.

The previous prime is 22135447. The next prime is 22135459. The reversal of 22135457 is 75453122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22135457 - 2⁴ = 22135441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22135459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195833 + ... + 195945.

It is an arithmetic number, because the mean of its divisors is an integer number (1477440).

Almost surely, 2^22135457 is an apocalyptic number.

It is an amenable number.

22135457 is a deficient number, since it is larger than the sum of its proper divisors (1503583).

22135457 is a wasteful number, since it uses less digits than its factorization.

22135457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304.

The product of its digits is 8400, while the sum is 29.

The square root of 22135457 is about 4704.8333658058. The cubic root of 22135457 is about 280.7778414034. Note that the first 3 decimals are identical.

Adding to 22135457 its reverse (75453122), we get a palindrome (97588579).

The spelling of 22135457 in words is "twenty-two million, one hundred thirty-five thousand, four hundred fifty-seven".