1097011651 has 2 divisors, whose sum is σ = 1097011652. Its totient is φ = 1097011650.

The previous prime is 1097011637. The next prime is 1097011691. The reversal of 1097011651 is 1561107901.

It is a weak prime.

It is an emirp because it is prime and its reverse (1561107901) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1097011651 is a prime.

It is not a weakly prime, because it can be changed into another prime (1097011691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548505825 + 548505826.

It is an arithmetic number, because the mean of its divisors is an integer number (548505826).

Almost surely, 2^1097011651 is an apocalyptic number.

1097011651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097011651 is an equidigital number, since it uses as much as digits as its factorization.

1097011651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 31.

The square root of 1097011651 is about 33121.1662083327. The cubic root of 1097011651 is about 1031.3444757718.

The spelling of 1097011651 in words is "one billion, ninety-seven million, eleven thousand, six hundred fifty-one".