340255251 has 12 divisors (see below), whose sum is σ = 561691312. Its totient is φ = 194431536.

The previous prime is 340255241. The next prime is 340255271. The reversal of 340255251 is 152552043.

It is a happy number.

340255251 is a `hidden beast` number, since 3 + 402 + 5 + 5 + 251 = 666.

It is not a de Polignac number, because 340255251 - 2¹⁷ = 340124179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340255241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2700376 + ... + 2700501.

Almost surely, 2^340255251 is an apocalyptic number.

340255251 is a deficient number, since it is larger than the sum of its proper divisors (221436061).

340255251 is a wasteful number, since it uses less digits than its factorization.

340255251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5400890 (or 5400887 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 340255251 is about 18446.0090805572. The cubic root of 340255251 is about 698.1278210535.

It can be divided in two parts, 3402 and 55251, that added together give a triangular number (58653 = T₃₄₂).

The spelling of 340255251 in words is "three hundred forty million, two hundred fifty-five thousand, two hundred fifty-one".