1097303965 has 4 divisors (see below), whose sum is σ = 1316764764. Its totient is φ = 877843168.

The previous prime is 1097303959. The next prime is 1097303969. The reversal of 1097303965 is 5693037901.

It is a happy number.

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 637158564 + 460145401 = 25242^2 + 21451^2 .

It is a cyclic number.

It is not a de Polignac number, because 1097303965 - 2²¹ = 1095206813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097303969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109730392 + ... + 109730401.

It is an arithmetic number, because the mean of its divisors is an integer number (329191191).

Almost surely, 2^1097303965 is an apocalyptic number.

It is an amenable number.

1097303965 is a deficient number, since it is larger than the sum of its proper divisors (219460799).

1097303965 is an equidigital number, since it uses as much as digits as its factorization.

1097303965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219460798.

The product of its (nonzero) digits is 153090, while the sum is 43.

The square root of 1097303965 is about 33125.5787119259. The cubic root of 1097303965 is about 1031.4360729927.

The spelling of 1097303965 in words is "one billion, ninety-seven million, three hundred three thousand, nine hundred sixty-five".