1105047197 has 2 divisors, whose sum is σ = 1105047198. Its totient is φ = 1105047196.

The previous prime is 1105047149. The next prime is 1105047247. The reversal of 1105047197 is 7917405011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 720063556 + 384983641 = 26834^2 + 19621^2 .

It is a cyclic number.

It is not a de Polignac number, because 1105047197 - 2⁶ = 1105047133 is a prime.

It is a super-2 number, since 2×1105047197² = 2442258615195113618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1105047137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552523598 + 552523599.

It is an arithmetic number, because the mean of its divisors is an integer number (552523599).

Almost surely, 2^1105047197 is an apocalyptic number.

It is an amenable number.

1105047197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105047197 is an equidigital number, since it uses as much as digits as its factorization.

1105047197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 35.

The square root of 1105047197 is about 33242.2501795531. The cubic root of 1105047197 is about 1033.8565314303.

The spelling of 1105047197 in words is "one billion, one hundred five million, forty-seven thousand, one hundred ninety-seven".