1278953 has 8 divisors (see below), whose sum is σ = 1389696. Its totient is φ = 1170000.

The previous prime is 1278911. The next prime is 1278983. The reversal of 1278953 is 3598721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1278953 - 2¹² = 1274857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1278983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1328 + ... + 2078.

It is an arithmetic number, because the mean of its divisors is an integer number (173712).

2^1278953 is an apocalyptic number.

1278953 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1278953 is a deficient number, since it is larger than the sum of its proper divisors (110743).

1278953 is a wasteful number, since it uses less digits than its factorization.

1278953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895.

The product of its digits is 15120, while the sum is 35.

The square root of 1278953 is about 1130.9080422386. The cubic root of 1278953 is about 108.5470924712.

The spelling of 1278953 in words is "one million, two hundred seventy-eight thousand, nine hundred fifty-three".