1254495397 has 4 divisors (see below), whose sum is σ = 1288400716. Its totient is φ = 1220590080.

The previous prime is 1254495367. The next prime is 1254495419. The reversal of 1254495397 is 7935944521.

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 798288516 + 456206881 = 28254^2 + 21359^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254495397 - 2⁷ = 1254495269 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 1254495397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254495367) 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, 16952604 + ... + 16952677.

It is an arithmetic number, because the mean of its divisors is an integer number (322100179).

Almost surely, 2^1254495397 is an apocalyptic number.

It is an amenable number.

1254495397 is a deficient number, since it is larger than the sum of its proper divisors (33905319).

1254495397 is an equidigital number, since it uses as much as digits as its factorization.

1254495397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33905318.

The product of its digits is 1360800, while the sum is 49.

The square root of 1254495397 is about 35418.8565173976. The cubic root of 1254495397 is about 1078.5071386459.

The spelling of 1254495397 in words is "one billion, two hundred fifty-four million, four hundred ninety-five thousand, three hundred ninety-seven".