1105542397 has 2 divisors, whose sum is σ = 1105542398. Its totient is φ = 1105542396.

The previous prime is 1105542377. The next prime is 1105542421. The reversal of 1105542397 is 7932455011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1084648356 + 20894041 = 32934^2 + 4571^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1105542397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1105542337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552771198 + 552771199.

It is an arithmetic number, because the mean of its divisors is an integer number (552771199).

Almost surely, 2^1105542397 is an apocalyptic number.

It is an amenable number.

1105542397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105542397 is an equidigital number, since it uses as much as digits as its factorization.

1105542397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 1105542397 is about 33249.6976978739. The cubic root of 1105542397 is about 1034.0109409131.

The spelling of 1105542397 in words is "one billion, one hundred five million, five hundred forty-two thousand, three hundred ninety-seven".