1097970249 has 8 divisors (see below), whose sum is σ = 1464975072. Its totient is φ = 731472800.

The previous prime is 1097970221. The next prime is 1097970253. The reversal of 1097970249 is 9420797901.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1097970249 - 2⁸ = 1097969993 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1097970198 and 1097970207.

It is not an unprimeable number, because it can be changed into a prime (1097970259) 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 7 ways as a sum of consecutive naturals, for example, 121764 + ... + 130469.

It is an arithmetic number, because the mean of its divisors is an integer number (183121884).

Almost surely, 2^1097970249 is an apocalyptic number.

It is an amenable number.

1097970249 is a deficient number, since it is larger than the sum of its proper divisors (367004823).

1097970249 is a wasteful number, since it uses less digits than its factorization.

1097970249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253687.

The product of its (nonzero) digits is 285768, while the sum is 48.

The square root of 1097970249 is about 33135.6341270240. The cubic root of 1097970249 is about 1031.6447937379.

The spelling of 1097970249 in words is "one billion, ninety-seven million, nine hundred seventy thousand, two hundred forty-nine".