1097000642 has 8 divisors (see below), whose sum is σ = 1689974076. Its totient is φ = 533675952.

The previous prime is 1097000609. The next prime is 1097000647. The reversal of 1097000642 is 2460007901.

It is a Cunningham number, because it is equal to 33121²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 1097000641 + 1 = 33121^2 + 1^2 .

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 (1097000647) 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, 7412093 + ... + 7412240.

Almost surely, 2^1097000642 is an apocalyptic number.

1097000642 is a deficient number, since it is larger than the sum of its proper divisors (592973434).

1097000642 is a wasteful number, since it uses less digits than its factorization.

1097000642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14824372.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 1097000642 is about 33121.0000150962. Note that the first 4 decimals coincide. The cubic root of 1097000642 is about 1031.3410257601.

The spelling of 1097000642 in words is "one billion, ninety-seven million, six hundred forty-two", and thus it is an aban number.