1097513073 has 12 divisors (see below), whose sum is σ = 1585608388. Its totient is φ = 731531520.

The previous prime is 1097513063. The next prime is 1097513077. The reversal of 1097513073 is 3703157901.

It can be written as a sum of positive squares in 2 ways, for example, as 523814769 + 573698304 = 22887^2 + 23952^2 .

It is not a de Polignac number, because 1097513073 - 2⁵ = 1097513041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1097513077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57561 + ... + 74217.

Almost surely, 2^1097513073 is an apocalyptic number.

It is an amenable number.

1097513073 is a deficient number, since it is larger than the sum of its proper divisors (488095315).

1097513073 is a wasteful number, since it uses less digits than its factorization.

1097513073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23984 (or 23981 counting only the distinct ones).

The product of its (nonzero) digits is 19845, while the sum is 36.

The square root of 1097513073 is about 33128.7348535980. The cubic root of 1097513073 is about 1031.5015874543.

The spelling of 1097513073 in words is "one billion, ninety-seven million, five hundred thirteen thousand, seventy-three".