20122469 has 2 divisors, whose sum is σ = 20122470. Its totient is φ = 20122468.

The previous prime is 20122429. The next prime is 20122477. The reversal of 20122469 is 96422102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15499969 + 4622500 = 3937^2 + 2150^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122469 - 2⁸ = 20122213 is a prime.

It is a super-2 number, since 2×20122469² = 809827517311922, 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 (20122429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061234 + 10061235.

It is an arithmetic number, because the mean of its divisors is an integer number (10061235).

Almost surely, 2^20122469 is an apocalyptic number.

It is an amenable number.

20122469 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122469 is an equidigital number, since it uses as much as digits as its factorization.

20122469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 20122469 is about 4485.8075081305. The cubic root of 20122469 is about 271.9946879369.

The spelling of 20122469 in words is "twenty million, one hundred twenty-two thousand, four hundred sixty-nine".