254121439 has 16 divisors (see below), whose sum is σ = 306623520. Its totient is φ = 207480960.

The previous prime is 254121391. The next prime is 254121463. The reversal of 254121439 is 934121452.

It is a cyclic number.

It is not a de Polignac number, because 254121439 - 2⁷ = 254121311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 254121439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254121839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18724 + ... + 29305.

It is an arithmetic number, because the mean of its divisors is an integer number (19163970).

Almost surely, 2^254121439 is an apocalyptic number.

254121439 is a deficient number, since it is larger than the sum of its proper divisors (52502081).

254121439 is a wasteful number, since it uses less digits than its factorization.

254121439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48090.

The product of its digits is 8640, while the sum is 31.

The square root of 254121439 is about 15941.1868755121. The cubic root of 254121439 is about 633.4034657023.

The spelling of 254121439 in words is "two hundred fifty-four million, one hundred twenty-one thousand, four hundred thirty-nine".