1097140867 has 4 divisors (see below), whose sum is σ = 1097413920. Its totient is φ = 1096867816.

The previous prime is 1097140823. The next prime is 1097140897. The reversal of 1097140867 is 7680417901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1097140867 - 2⁷ = 1097140739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1097140817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130408 + ... + 138565.

It is an arithmetic number, because the mean of its divisors is an integer number (274353480).

Almost surely, 2^1097140867 is an apocalyptic number.

1097140867 is a deficient number, since it is larger than the sum of its proper divisors (273053).

1097140867 is an equidigital number, since it uses as much as digits as its factorization.

1097140867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273052.

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 1097140867 is about 33123.1168068465. The cubic root of 1097140867 is about 1031.3849678899.

The spelling of 1097140867 in words is "one billion, ninety-seven million, one hundred forty thousand, eight hundred sixty-seven".