274140407 has 2 divisors, whose sum is σ = 274140408. Its totient is φ = 274140406.

The previous prime is 274140397. The next prime is 274140421. The reversal of 274140407 is 704041472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 274140407 - 2¹⁸ = 273878263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 274140407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274140467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137070203 + 137070204.

It is an arithmetic number, because the mean of its divisors is an integer number (137070204).

Almost surely, 2^274140407 is an apocalyptic number.

274140407 is a deficient number, since it is larger than the sum of its proper divisors (1).

274140407 is an equidigital number, since it uses as much as digits as its factorization.

274140407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 274140407 is about 16557.1859625964. The cubic root of 274140407 is about 649.6174530088.

Adding to 274140407 its reverse (704041472), we get a palindrome (978181879).

The spelling of 274140407 in words is "two hundred seventy-four million, one hundred forty thousand, four hundred seven".