1392269 has 2 divisors, whose sum is σ = 1392270. Its totient is φ = 1392268.

The previous prime is 1392253. The next prime is 1392271. The reversal of 1392269 is 9622931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1350244 + 42025 = 1162^2 + 205^2 .

It is an emirp because it is prime and its reverse (9622931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1392269 - 2⁴ = 1392253 is a prime.

It is a super-2 number, since 2×1392269² = 3876825936722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1392271, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1392229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696134 + 696135.

It is an arithmetic number, because the mean of its divisors is an integer number (696135).

2^1392269 is an apocalyptic number.

It is an amenable number.

1392269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1392269 is an equidigital number, since it uses as much as digits as its factorization.

1392269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 32.

The square root of 1392269 is about 1179.9444902198. The cubic root of 1392269 is about 111.6625953319.

It can be divided in two parts, 1392 and 269, that added together give a palindrome (1661).

The spelling of 1392269 in words is "one million, three hundred ninety-two thousand, two hundred sixty-nine".