1097139 has 8 divisors (see below), whose sum is σ = 1470160. Its totient is φ = 727776.

The previous prime is 1097113. The next prime is 1097141. The reversal of 1097139 is 9317901.

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

It is not a de Polignac number, because 1097139 - 2⁸ = 1096883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1097179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112 + ... + 1485.

It is an arithmetic number, because the mean of its divisors is an integer number (183770).

2^1097139 is an apocalyptic number.

1097139 is a deficient number, since it is larger than the sum of its proper divisors (373021).

1097139 is a wasteful number, since it uses less digits than its factorization.

1097139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829.

The product of its (nonzero) digits is 1701, while the sum is 30.

The square root of 1097139 is about 1047.4440319177. Note that the first 3 decimals coincide. The cubic root of 1097139 is about 103.1384382855.

The spelling of 1097139 in words is "one million, ninety-seven thousand, one hundred thirty-nine".