1254499385 has 4 divisors (see below), whose sum is σ = 1505399268. Its totient is φ = 1003599504.

The previous prime is 1254499331. The next prime is 1254499387. The reversal of 1254499385 is 5839944521.

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

It can be written as a sum of positive squares in 2 ways, for example, as 532824889 + 721674496 = 23083^2 + 26864^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254499385 - 2²⁴ = 1237722169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1254499387) 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 3 ways as a sum of consecutive naturals, for example, 125449934 + ... + 125449943.

It is an arithmetic number, because the mean of its divisors is an integer number (376349817).

Almost surely, 2^1254499385 is an apocalyptic number.

It is an amenable number.

1254499385 is a deficient number, since it is larger than the sum of its proper divisors (250899883).

1254499385 is an equidigital number, since it uses as much as digits as its factorization.

1254499385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250899882.

The product of its digits is 1555200, while the sum is 50.

The square root of 1254499385 is about 35418.9128150484. The cubic root of 1254499385 is about 1078.5082814910.

The spelling of 1254499385 in words is "one billion, two hundred fifty-four million, four hundred ninety-nine thousand, three hundred eighty-five".