22714157 has 4 divisors (see below), whose sum is σ = 23142780. Its totient is φ = 22285536.

The previous prime is 22714147. The next prime is 22714201. The reversal of 22714157 is 75141722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75141722 = 2 ⋅37570861.

It can be written as a sum of positive squares in 2 ways, for example, as 18412681 + 4301476 = 4291^2 + 2074^2 .

It is a cyclic number.

It is not a de Polignac number, because 22714157 - 2⁴ = 22714141 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 (22714117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214232 + ... + 214337.

It is an arithmetic number, because the mean of its divisors is an integer number (5785695).

Almost surely, 2^22714157 is an apocalyptic number.

It is an amenable number.

22714157 is a deficient number, since it is larger than the sum of its proper divisors (428623).

22714157 is an equidigital number, since it uses as much as digits as its factorization.

22714157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428622.

The product of its digits is 3920, while the sum is 29.

The square root of 22714157 is about 4765.9371586289. The cubic root of 22714157 is about 283.2036683122.

Adding to 22714157 its reverse (75141722), we get a palindrome (97855879).

The spelling of 22714157 in words is "twenty-two million, seven hundred fourteen thousand, one hundred fifty-seven".