1235421067 has 2 divisors, whose sum is σ = 1235421068. Its totient is φ = 1235421066.

The previous prime is 1235421049. The next prime is 1235421163. The reversal of 1235421067 is 7601245321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1235421067 - 2⁷ = 1235420939 is a prime.

It is not a weakly prime, because it can be changed into another prime (1235421007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617710533 + 617710534.

It is an arithmetic number, because the mean of its divisors is an integer number (617710534).

Almost surely, 2^1235421067 is an apocalyptic number.

1235421067 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235421067 is an equidigital number, since it uses as much as digits as its factorization.

1235421067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 1235421067 is about 35148.5571112101. The cubic root of 1235421067 is about 1073.0130427394.

Adding to 1235421067 its reverse (7601245321), we get a palindrome (8836666388).

It can be divided in two parts, 123542 and 1067, that added together give a square (124609 = 353²).

The spelling of 1235421067 in words is "one billion, two hundred thirty-five million, four hundred twenty-one thousand, sixty-seven".