1278210453 has 16 divisors (see below), whose sum is σ = 1840942656. Its totient is φ = 784206720.

The previous prime is 1278210443. The next prime is 1278210469. The reversal of 1278210453 is 3540128721.

It is not a de Polignac number, because 1278210453 - 2⁹ = 1278209941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1278210403) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 36600 + ... + 62417.

It is an arithmetic number, because the mean of its divisors is an integer number (115058916).

Almost surely, 2^1278210453 is an apocalyptic number.

1278210453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1278210453 is a deficient number, since it is larger than the sum of its proper divisors (562732203).

1278210453 is a wasteful number, since it uses less digits than its factorization.

1278210453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99364.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 1278210453 is about 35752.0692128442. The cubic root of 1278210453 is about 1085.2608129474.

The spelling of 1278210453 in words is "one billion, two hundred seventy-eight million, two hundred ten thousand, four hundred fifty-three".