1097378753 has 4 divisors (see below), whose sum is σ = 1097466708. Its totient is φ = 1097290800.

The previous prime is 1097378749. The next prime is 1097378761. The reversal of 1097378753 is 3578737901.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3578737901 = 151 ⋅23700251.

It can be written as a sum of positive squares in 2 ways, for example, as 1084187329 + 13191424 = 32927^2 + 3632^2 .

It is a cyclic number.

It is not a de Polignac number, because 1097378753 - 2² = 1097378749 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1097378353) 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, 21398 + ... + 51503.

It is an arithmetic number, because the mean of its divisors is an integer number (274366677).

Almost surely, 2^1097378753 is an apocalyptic number.

It is an amenable number.

1097378753 is a deficient number, since it is larger than the sum of its proper divisors (87955).

1097378753 is an equidigital number, since it uses as much as digits as its factorization.

1097378753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87954.

The product of its (nonzero) digits is 1111320, while the sum is 50.

The square root of 1097378753 is about 33126.7075484419. The cubic root of 1097378753 is about 1031.4595053600.

The spelling of 1097378753 in words is "one billion, ninety-seven million, three hundred seventy-eight thousand, seven hundred fifty-three".