1252838254 has 4 divisors (see below), whose sum is σ = 1879257384. Its totient is φ = 626419126.

The previous prime is 1252838243. The next prime is 1252838263. The reversal of 1252838254 is 4528382521.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313209562 + ... + 313209565.

It is an arithmetic number, because the mean of its divisors is an integer number (469814346).

Almost surely, 2^1252838254 is an apocalyptic number.

1252838254 is a deficient number, since it is larger than the sum of its proper divisors (626419130).

1252838254 is an equidigital number, since it uses as much as digits as its factorization.

1252838254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626419129.

The product of its digits is 153600, while the sum is 40.

The square root of 1252838254 is about 35395.4552732409. The cubic root of 1252838254 is about 1078.0320397608.

The spelling of 1252838254 in words is "one billion, two hundred fifty-two million, eight hundred thirty-eight thousand, two hundred fifty-four".