1918097 has 2 divisors, whose sum is σ = 1918098. Its totient is φ = 1918096.

The previous prime is 1918087. The next prime is 1918121. The reversal of 1918097 is 7908191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1745041 + 173056 = 1321^2 + 416^2 .

It is a cyclic number.

It is not a de Polignac number, because 1918097 - 2¹² = 1914001 is a prime.

It is a super-2 number, since 2×1918097² = 7358192202818, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1918027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 959048 + 959049.

It is an arithmetic number, because the mean of its divisors is an integer number (959049).

2^1918097 is an apocalyptic number.

It is an amenable number.

1918097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1918097 is an equidigital number, since it uses as much as digits as its factorization.

1918097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 1918097 is about 1384.9537898428. The cubic root of 1918097 is about 124.2482237235.

The spelling of 1918097 in words is "one million, nine hundred eighteen thousand, ninety-seven".