1421295269 has 2 divisors, whose sum is σ = 1421295270. Its totient is φ = 1421295268.

The previous prime is 1421295257. The next prime is 1421295397. The reversal of 1421295269 is 9625921241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1394649025 + 26646244 = 37345^2 + 5162^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421295269 - 2¹² = 1421291173 is a prime.

It is a super-2 number, since 2×1421295269² = 4040160483363564722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421291269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710647634 + 710647635.

It is an arithmetic number, because the mean of its divisors is an integer number (710647635).

Almost surely, 2^1421295269 is an apocalyptic number.

It is an amenable number.

1421295269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421295269 is an equidigital number, since it uses as much as digits as its factorization.

1421295269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 41.

The square root of 1421295269 is about 37700.0698805718. The cubic root of 1421295269 is about 1124.3325143993.

The spelling of 1421295269 in words is "one billion, four hundred twenty-one million, two hundred ninety-five thousand, two hundred sixty-nine".