1097961530 has 8 divisors (see below), whose sum is σ = 1976330772. Its totient is φ = 439184608.

The previous prime is 1097961521. The next prime is 1097961533. The reversal of 1097961530 is 351697901.

It can be written as a sum of positive squares in 2 ways, for example, as 960814009 + 137147521 = 30997^2 + 11711^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1097961533) 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, 54898067 + ... + 54898086.

Almost surely, 2^1097961530 is an apocalyptic number.

1097961530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1097961530 is a deficient number, since it is larger than the sum of its proper divisors (878369242).

1097961530 is a wasteful number, since it uses less digits than its factorization.

1097961530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109796160.

The product of its (nonzero) digits is 51030, while the sum is 41.

The square root of 1097961530 is about 33135.5025614521. The cubic root of 1097961530 is about 1031.6420629612.

The spelling of 1097961530 in words is "one billion, ninety-seven million, nine hundred sixty-one thousand, five hundred thirty".