101622397 has 2 divisors, whose sum is σ = 101622398. Its totient is φ = 101622396.

The previous prime is 101622377. The next prime is 101622403. The reversal of 101622397 is 793226101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88906041 + 12716356 = 9429^2 + 3566^2 .

It is an emirp because it is prime and its reverse (793226101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101622397 - 2¹¹ = 101620349 is a prime.

It is a super-2 number, since 2×101622397² = 20654223144051218, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101622337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50811198 + 50811199.

It is an arithmetic number, because the mean of its divisors is an integer number (50811199).

Almost surely, 2^101622397 is an apocalyptic number.

It is an amenable number.

101622397 is a deficient number, since it is larger than the sum of its proper divisors (1).

101622397 is an equidigital number, since it uses as much as digits as its factorization.

101622397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 101622397 is about 10080.7934707542. The cubic root of 101622397 is about 466.6555960526.

Adding to 101622397 its reverse (793226101), we get a palindrome (894848498).

The spelling of 101622397 in words is "one hundred one million, six hundred twenty-two thousand, three hundred ninety-seven".