22814157 has 4 divisors (see below), whose sum is σ = 30418880. Its totient is φ = 15209436.

The previous prime is 22814107. The next prime is 22814201. The reversal of 22814157 is 75141822.

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 22814157 - 2¹² = 22810061 is a prime.

It is a super-3 number, since 3×22814157³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22814107) 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, 3802357 + ... + 3802362.

It is an arithmetic number, because the mean of its divisors is an integer number (7604720).

Almost surely, 2^22814157 is an apocalyptic number.

It is an amenable number.

22814157 is a deficient number, since it is larger than the sum of its proper divisors (7604723).

22814157 is an equidigital number, since it uses as much as digits as its factorization.

22814157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7604722.

The product of its digits is 4480, while the sum is 30.

The square root of 22814157 is about 4776.4167531739. The cubic root of 22814157 is about 283.6186651159.

Adding to 22814157 its reverse (75141822), we get a palindrome (97955979).

The spelling of 22814157 in words is "twenty-two million, eight hundred fourteen thousand, one hundred fifty-seven".